Most Economical Car

Most Efficient Luxury Cars

Below are the top 10 most efficient luxury cars for highway fuel economy.

Diesel rules the way claiming eight out of the top 10 spots. The remaining two are petrol driven. Fuel consumption is not too bad on the open road, but suffers in the city where constant braking and acceleration really affects these heavy cars.

If you can afford these vehicles fuel savings will be the least of your worries. The cost of these luxury cars varies from 25,00,000 for the BMW 320d to a whopping 1,20,00,000 for the Mercedes CL500.

Efficient Car	Engine	City km/L	Hwy km/L
Volvo S80 D5	2.4L diesel	10.1	16.0
Mercedes-Benz C-Class C 250 CDI	2.2L diesel	9.8	15.4
Mercedes-Benz S-Class S 350 CDI	3.0L diesel	9.0	13.5
BMW 3 Series 320d	2.0L diesel	11.2	13.2
Jaguar XF	3.0L diesel	8.7	13.0
Volkswagen Phaeton	3.6L petrol	8.2	12.8
Mercedes-Benz E-Class E250 CDI	2.2L diesel	8.5	12.5
BMW Gran Turismo	3.0L diesel	9.0	12.0
Mercedes-Benz CL-Class 500	5.5L petrol	6.0	12.0
BMW 5 Series 520 d	2.0L diesel	8.4	11.5

Volvo S80 D5

The most efficient luxury car is the Volvo S80 D5.

The Volvo S80 D5 has a 2.4L direct injection common rail turbodiesel engine which generates 205 PS of power. The engine has five cylinders which gives a smoother, quieter drive and more power than four cylinder diesel engines.

This car is the first to use Bosch's second generation fuel injection system boasting higher injector pressures. The result is a more consistent injection cycle, lower fuel consumption and less emissions.