E 300 BlueTEC HYBRID Returns 67.3 Mpg Even With Spirited Driving Mixed In

The Mercedes-Benz E 300 BlueTEC HYBRID is designed to be capable of combining performance and efficiency. In standard form it can accelerate from zero to 62 mph in 7.5-seconds. It can achieve a maximum speed of 150 mph and can return 67 mpg while emitting 109 g/km of CO2.

To prove the theory in the real-world, the very first example of the car to arrive in the UK set out on an economy run – with a twist – to prove that driving fun and efficiency can be combined.

Driving duties were handed over to ex-rally driver Mick Linford.

Linford started the car’s economy run in the unlikely surroundings of the main runway at Newquay Cornwall Airport – the most southern active airport in mainland Britain. There, the car accelerated from zero to 62 mph in a little over seven seconds before achieving a peak speed of 136 mph.

The car was then driven entirely normally for an 830-mile northward route to its counterpart in Scotland – Wick Airport – the most northern airport in mainland Britain.

Over the course of the two-day journey it encountered real-world driving conditions, including heavy traffic, diversions and challenging weather.

On arrival at Wick Airport the E 300 BlueTEC HYBRID achieved a maximum speed of 120 mph down the runway, which was 911 meters (0.56 mile) shorter than at Newquay.

The engineering team behind the E 300 BlueTEC HYBRID aimed to strike a balance between delivering everyday economy and performance, when required. Over a distance of 830-miles and two days, the car achieved a peak speed of 136 mph. According to Mercedes-Benz, it returned a total fuel economy of 67.3 mpg.

The entire trip was carried out on a single tank of fuel – of which a quarter remained on its arrival in Wick. Had the car carried on driving it would have achieved a theoretical range in excess of 1,100-miles.

This fuel economy is made possible through a hybrid system linked to the four-cylinder diesel engine – an electric motor is mounted within the 7G-TRONIC PLUS automatic transmission. The gearbox substitutes a torque converter for a wet clutch system, therefore allowing for the internal combustion engine to be disengaged entirely via the clutch and for electric-only drive to be maintained for short periods, boosting economy.

The system is packaged within the vehicle so as not to impact on the load capacity of the E-Class in any way.

  • PatrickPunch

    Some basic arithmatic of 109 g CO2/km let’s me conclude that we talk about 67 miles per IMPERIAL gallon or 55 miiles per US gallon.

  • MS

    This is 28% improvement over the previous Class E comparable Diesel version (non Hybrid).

    Altought it is an electric motor with only 25hp, it seems very good consumption for a car of this size, even for a Diesel.
    Not sure if the aprox 55 mpg (US) are Hw or combined, as for city driving a car of this size with a 25hp electric motor will consume a lot more.

  • MrEnergyCzar

    That’s Prius mileage in the states…very good..