Sunroof on a hybrid
Created April 3, 2005, at 6:07 pm by Anonymous
Just a question: I'm wondering why all the current hybrids on the market do not have a sunroof as an option? I would think that it would be standard on a hybrid, as it would be a more "green" option than using the a/c.
I'm considering buying a hybrid, however the sunroof issue is one of the things that's holding me back. I'm just curious about what everyone else thinks...
Any good reasons why a sunroof wouldn't be a good option on a hybrid car?
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The 2006 Ford Escape Hybrid will offer a sunroof as an option.
sunroof adds unnecessary weight, dragging down mpg by a very small amount. with it open, air resistance will increase also.
2nd gen prius has electric a/c so this is not a problem. other hybrids like civic hybrid can have an aftermarket sunroof installed
On the upcoming Toyota Highlander Hybrid, the Limited edition comes standard with a sunroof. To get a sunroof on the base model, you have to get the option package.
With the crazy gas prices, it's likely hybrid cars are going to be more in demand. However, the lack of a sunroof is one of the only things preventing me from getting one when it's time for me to replace my car. After-market sunroofs often become leaky and I don't want to risk having that done. I would hope that the hybrid cars would soon have sunroofs and not just the trucks/SUVs.
Rather than a sunroof -- how about a solar roof? You could fit about an 80w solar panel in the area used by a sunroof. Charging the batteries passively while your car is parked in the sun would greatly improve gas mileage on a hybrid. Even a 20 watt panel over the course of a work day would provide significant charging power.
To be really Green Smart, make the sunroof a solar panel to charge your Hybrid Ni-MH Battery when it is not used for extended periods of time.
I'll second the "no-sunroof-is-the-only-thing-that-keeps-me-from-buying-one" motion. I just got my first look at the new Civic hybrid online - finally, a nice, normal-looking sporty hybrid car. It actually looks like a fun car to drive, but again, Honda f***s it up by not making a sunroof an option. I don't want to have to buy an SUV or a $30,000 Accord to have hybrid power *and* a sunroof!
*sighs*
I guess I'll just stick with my gasoline-powered sunroof-equipped sedan for now...
My Highlander has a sunroof. I drive in the mornings with it open. Yes, it ads some drag, but the a/c not sucking on my battery actually keeps the mpg level.
so sad that sunroofs aren't part of the standard pkgs. a sliding solar panel couldn't make more green sense! what the heck? I love the Prius so much and have a deposit down on one, but I so REALLY love the double sunroofs in my Subaru Legacy that I am forcing myself to wait to buy the Prius until a sun roof or better, sliding solar panel comes avail!
I justing reading this post. I drive a vw jetta tdi low to mid 40s combine driving and I have a sunroof. If want a nice car with a sunroof test drive vw diesel. I treavel 600mile on a tank of gas. Don
My RX400h has a sunroof as standard equipment. I use it frequently.
I have a 2006 Prius on order and am seriously considering adding a sunroof to it...
- Anyone know of any issues in adding a sunroof to the Prius (affecting wires, cables, infrastructure, airbags, etc.)?
- Any suggestions on how to get a sunroof installed?
The solar panel would be very kewl too. I'm wondering if that post about the solar panel was just a comment of fiction or a possibility in reality...
- If it's a possibility, any suggestions on how'd I go about getting a solar panel installed?
They mod the Scion to the hilt, I say why not add some after-market urban flare to the Prius!
The roof, the roof...
Driving around the San Francisco Bay area a few days, I saw a Honda Civic Hybrid with a sunroof. Must have been an after-market add-on.
Who can wait? I did a little more Googling and unf, it doesn't sound like there's an immediate, cost-effecitve way to add solar (or plug-in) power to the Prius. But there IS progress in that direction! Some links with commentaries below...
Solar-Powered Toyota Prius Project - http://www.treehugger.com/files/2005/08/solar-powered_t.php
Solar Energy Kit Gives Prius 10% Better Mileage - http://www.renewableenergyaccess.com/rea/news/productstory?id=40320
How We Green-Tuned an '04 Prius into a PRIUS+ Plug-In Hybrid! - http://www.calcars.org/priusplus.html
Now, I'd be glad to generate some vitamin D myself with a sun roof if I could find something on the web about it!
Roof, the Renewable Energy Access website you mention has a comments section which discusses the roof-mounted solar cells as being a fraud. For an investment of over $2000, they generate 1/25 horsepower, which is utterly insignificant.
I've read the new Camry hybrid will have a sunroof as an added cost option.
The sunroof, on the smaller cars such as the Prius ad civic, which I have recently purchased, will sacrifice the structural integrity of the vehicle and thus safety features won't be nearly as effective, i.e. side curtain airbags, crumple zones. A sun roof has always been a "must have" feature for me, but the sacrifice is well worth it. My advice is if you want sun so badly, go for a walk.
I just bought a slightly used 05 Escape hybrid, trading in my 98 Passport in on it. Man do I miss that sunroof. Having said that though, I know that glass is heavier than metal and I will accept the lighter weight/lack of sun of my FEH for the sake of better mpg.
hi,
i'm waiting too! this is the car i'm waiting for:
1. hybrid
2. lightweight with good mpg, and also qualifying for stickers for carpool lane
3. sunroof
4. high safety ratings
until then my safe honda accord with sunroof will do me fine.
:-)
'06 Ford Escape Hybrid includes an optional sunroof for $585 MSRP. Got one and love it (my first vehicle to have a sunroof).
Attention Honda: Waiting to purchase Civic Hybrid till it is offered with a sunroof
I wasn't aware that they do not come with sun roofs... yet another reason I cannot get a hybrid as soon as I would like.
I require:
1. sunroof
2. 5-speed manual transmission
3. hp of 140 or more
Dammit dammit dammit....
Lilly,
Don't underestimate the horsepower of a hybrid - they're a different kind of beast altogether. A hybrid can have better performance than a pure gasoline engine even if it's rated horsepower is lower.
Remember, an ICE (Internal Combustion Engine) like a traditional gasoline engine, only produces the maximum horsepower at a certain engine speed (RPM's) while an electric motor can produce its maximum horsepower at nearly any speed up to a point. Therefore, the traditional HP ratings don't apply to the performance of a hybrid since much of the acceleration performance is handled by the electric motor, not the ICE. The '06 HCH is rated at:
- 110 hp at 6000 RPM for the ICE
- 20 hp from 0 - max RPM
What this really means is that when the car is starting from a stop and the engine is running slowly, you only really are getting maybe 10 or 15 hp from the ICE while the electric is providing 20 hp for a total of maybe 30 to 35 total hp. A 140 hp pure gasoline ICE may only be producing 15 or 20 hp when starting up.
Your effective performance then while accelerating will probably be better with the hybrid even though it looks like it only has 110 + 20 = 130 hp.
Your concern about a manual transmission is interesting as well. My wife drives the '03 HCH purely because is it the only hybrid 5 seater with a manual transmission so I understand your concern. From a technical perspective, hybrids really shouldn't even have a transmission since the electric motor can be designed to obviate the transmission - but that would put the transmission division out of work so it isn't likely to wind a design at a car company. However, the electric drive does enable the "'holy grail' of the transmission engineer - the CVT to work well so in trade for putting in the electric motor, the cost seems to have been to allow the transmission divisions to put in their pet project.
I'm afraid that we'll probably never see another hybrid with a manual transmission and the old HCH and Insight don't have sunroofs.
You might want to consider restructuring your requirements or you won't be able to take advantage of some awesome automotive advances. The pure electric super-cars don't have any transmission and they can accelerate faster than nearly all other supercars including Viper, Ferari, Lamborghini, etc (http://www.pluginamerica.com/media/Wrightspeed.wmv), (http://www.venturi.fr).
There is, of course, no excuse for not offering a sunroof however.
NO SUNROOF. NO DEAL.
I was looking into getting us a Prius as a second car but the "No Sunroof" option was an instantanious deal killer.
After market sunroofs are not well designed and are notorius for leaks.
I don't use the AC on my current car... just the sunroof.
If sunroofs are not included because they create a drag then they should eliminate the door windows as well.
We just bought a Prius. It had no sunroof wich bothered me very much so I hired a man who said he knew how to install them that I met at Starbucks. When I went to pick up our new #8 Prius I discovered that Jeb, the installer, had used a saw-zaw/ hack saw to cut an irregularly sqare hole in the roof and used some type of epoxy or silicone to install a flexible piece of plexiglass on the roof which will not open.
I just about lost my lunch when I saw this.
Now after driving our new Prius for a couple of months, scratches have built up and the sun has caused it ot turn somewhat yellow now as well as it tends to sag in the middle. In the summer I have a stick braced on the floor to the sunroof to hold the sagging plexiglass up. (My wife hates this part but I don't care.)
My wife is angry over what I did to the car and especially the fact that the shape of the sunroof hole is somewhat of a jagged trapazoid shape.
My Question to Toyota... On such a popular car, why would you not ad something that most sun loving people like... a SUNROOF?!?!
I'm a Prius owner. I love my Prius. Yea, I would have loved a sunroof. But I've learned to make do with out it. When I drive to work and feel the need for that sun and wind in my hair I just stick my head out the window! (This was suggested to me by the dealer) It feels good and is easy to do. I sometimes find myself driving the whole way to work with my head out the window!
Until Toyota ads the sunroof option, just remember, for every problem there is a solution!
I have heard from plant workers that the 2007 Prius model will will feature a double panel/length Sunroof option under options #7, #8, and a new #9 option plan. So if you absolutely need that sunroof you may hold out for the 2007 Prius with a sunroof.
Yes, Sunroofs are on the near horizon as well as newly updated Lithium Ion batteries possibly in '08.
While driving the insane roads of LA today, I spotted a STRETCHED PRIUS limo! How many batteries I wondered does it take to power a Prius limo.
Now thats electric, eclectic luxury!
Oh those envirementalist movie stars!
Oh... and of course, yes it had a sunroof.
Sunroofs:
Are you CERTAIN about that sunroofs-in-07 package?
This is really important. Will determine whether i buy now or not.
I was also interested in putting some solar power to work on my Prius and found some solar panels that one plugs into the "cigarette lighter" electical connector to charge the battery when the car is parked.
I ditched the idea when I read that the hybrid is set up to keep batteries between 40-60% charged to ensure battery longevity.
Does anyone know what effect one of these would have on the battery - and would it make a difference in my mileage?
Peter, we've discussed this topic on HybridCars before (several times, actually). One horsepower equals 747 watts. Look how many watts your solar cell panel would produce, and then do the math to figure what small fraction of a horsepower would be produced. A typical plug-in-the-cigarette-lighter solar cell system produces about 25 watts, or about 1/30 horsepower. Now ask yourself if you could even detect 1/30 horsepower increase (or decrease!) in your car's performance.
On the discussion regarding manual transmissions and hybrids, it should be noted that there are a plethora of systems that are now under study and development by many manufacturers such as ZF, Bosch, Siemens, Marelli, Aisin, etc.. I recently read an extensive article in the german car magazine "Auto motor & Sport" which was discussing some 8 or 9 different systems which would provide different levels of hybridization. An interesting item was the double clutch split by a starter/flywheel which is in effect an electro-motor that can provide power during acceleration and stop and go traffic, but would function as a generator when the vehicle needs slowing down thus regenerating energy. That design, can then be coupled to any kind of transmission with fairly little modification. There were many other ones, but hybridization in Europe, is being done a bit differently than here. They indicated in the article that for a while Europeans looked at this technology a bit skeptically initially, now quite a bit of research is being undertaken but component suppliers but also manufacturers such as Daimler Chrysler, VAG group, even BMW. In most cases, though it seems they are maintaining the basic designs engine+ transmission configuration with an additional hybrid drive.
I imagine hybridization is taking a somewhat different form of development in Europe because of the relatively higher highway speeds where battery weight is a big impediment.
In response to this post:
We just bought a Prius. It had no sunroof wich bothered me very much so I hired a man who said he knew how to install them that I met at Starbucks. When I went to pick up our new #8 Prius I discovered that Jeb, the installer, had used a saw-zaw/ hack saw to cut an irregularly sqare hole in the roof and used some type of epoxy or silicone to install a flexible piece of plexiglass on the roof which will not open.
I just about lost my lunch when I saw this.
Now after driving our new Prius for a couple of months, scratches have built up and the sun has caused it ot turn somewhat yellow now as well as it tends to sag in the middle. In the summer I have a stick braced on the floor to the sunroof to hold the sagging plexiglass up. (My wife hates this part but I don't care.)
My wife is angry over what I did to the car and especially the fact that the shape of the sunroof hole is somewhat of a jagged trapazoid shape.
My Question to Toyota... On such a popular car, why would you not ad something that most sun loving people like... a SUNROOF?!?!
Mad Prius owner
May 28, 2006
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There's no way this is real. Who in the world would hire a stranger to install a sunroof in a brand new $25,000 car?
There's no way it really took you two months to figure that out. ;-)
Diesel Driver - very interesting info on the European hybrid research. Maybe there is hope for the manual transmission in a hybrid after all. I think I'll wait and see what the Europeans come out with before getting a hybrid.
All you considering a Prius or Civic and want a sunroof - why don't you consider a Jetta TDI - easily obtainable with a sunroof. Not a hybrid, but gets comparable MPG.
I was dead set on getting a hybrid, but I finally was forced to wait so I sat back and took stock on what I really wanted from a car. I now have done a complete flip and plan on getting a diesel instead. My conclusion is that hybrids are cool, but they're not the only cars that get great MPG.
But I definitely agree with everyone that says hybrids should be available with sunroofs. Withholding that option is a bad business decision in my opinion...
A sunroof, just like any open window increases the drag coefficient. More drag means lower gas mileage and that's not what the hybrid is after. Oddly enough vehicles get better mileage with their windows shut and that includes sunroofs.
>>A sunroof, just like any open window increases the drag coefficient. More drag means lower gas mileage and that's not what the hybrid is after.
So?? Most people that want them are probably willing to sacrifice a few mpg for it. Besides, a lot of other extras on modern cars add weight, also reducing mpg. Should we strip our cars of anything luxurious to maximize mpg?? I'll take my sunroof... I want to enjoy my ride.
It seems like I must be the only tall person here at 6'2". I test drove the "standard" Civic that came with the standard sunroof and I did not have enough head room, even with the seat at it's lowest position. When I test drove the civic hybrid, which does not have the standard sunroof, I head enough head room. It seems (in the civic, at least) that the sunroof takes a few inches out of your head room. This may not be a bother to a lot of people, but if you're tall, it is something to consider. BTW, I bought the hybrid.
I have the Accord hybrid. Opening it does decrease the mpg, but it sure is nice, at a price.
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