Hybrid Vehicle Career

You have two very different paths to choose.
1) Look for a job with a big name company. This is hit or miss, depending on whether the car economy is going up or down. It is also the easy path since everyone knows who the players are. The disadvantage is that you will do very little actual engineering...very, very little.
2) Seek out the small companies that are growing. These will have names you will have never heard. They also will never come to you. You have to find them. Also, they may not deal in finished vehicles but in test machinery (e.g. dynometers, electric motors) or car components. The advantage here is that if you find the right company, you will end up doing lots of engineering.

My advice (and this is good advice), look hard for a company that has real engineering work and do not let (within reason) salary, location, name, etc. lure you into a non-engineering job. (Hint-"Sales Engineers" do not do engineering.)