Green Car Guide to the most economical and lowest emission executive cars on sale in the UK today. We list our top green diesel, petrol and hybrid executive cars.
Diesel and Hybrid Executive Cars
Mercedes-Benz E300 Hybrid 68.9 mpg
The Mercedes-Benz E300 Hybrid has an official combined economy figure of 65.7mpg, which is highly impressive for such a large and refined executive car.
BMW 5 Series 520d ED 62.8 mpg
The 520d ED achieves excellent fuel economy that shames many city cars. With a brilliant blend of quality, style, performance and driving entertainment, it remains our favourite.
Mercedes-Benz E-Class E220 CDI 58.9 mpg
The E-Class has a BlueEFFICIENCY pack which means low rolling resistance tyres, energy-saving alternator, fuel pump, air conditioning and power steering.
Audi A6 2.0 TDI SE 57.7 mpg
The A6 uses an arsenal of technology to achieve its impressive fuel economy, which is slightly better than the previous A6 2.0 TDIe overall, but the performance of the new car is much better.
Petrol and Hybrid Executive Cars
Lexus GS 300h 60.1 mpg
The Lexus GS 300h uses its petrol-electric hybrid system to deliver an impressive 60.1mpg, as well as offering a very refined driving experience.
At the heart of the E200 is a 1.8-litre, four-cylinder petrol engine which combines variable intake and exhaust camshafts, direct injection and turbocharging to great effect. The result is more than 100 bhp / litre and 228 lb.ft of torque over an exceptionally wide band from 2,000 to 4,300 rpm.
BMW 5 Series 520i SE 44.1 mpg
The 5 Series has always been the most engaging executive saloon to drive and the latest version maintains top spot. The 520i automatic blends good performance with strong fuel economy and poise making it the ideal choice for enthusiastic drivers.
Lexus GS 450h 46.3 mpg
The Lexus GS 450h uses its petrol-electric hybrid system to combine performance and low emissions.
BMW ActiveHybrid5 44.1 mpg
Despite the high expectations the ActiveHybrid5 doesn’t disappoint. If fuel consumption is your top priority then the 520i will save you thousands of pounds and match the hybrid.
Audi A8 Hybrid 2.0 TFSI Tiptronic 44.8 mpg
The Audi A8 Hybrid sits in the next segment up from these cars in the Executive Class, and so it’s more expensive than the other contenders above, however it’s equally efficient, which is an impressive achievement.