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
Mazda6 2.2 150 SE 72.4 mpg
The Mazda6 may not be the first thought for an executive car, but it looks great, drives well, and has an excellent official combined economy figure of 72.4mpg.
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.
Audi A6 SE 2.0 TDI ultra 64.2 mpg
The most efficient Audi A6 now gains the title ‘ultra’, and this model has an official combined economy figure of 64.2mpg.
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.
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 47.1 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.
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.
The Mercedes-Benz S-Class 400 Hybrid L SE Line can manage 44.8mpg – impressive for one of the world’s leading petrol-powered luxury cars.
Plug-in Hybrid Executive Cars
Porsche Panamera S E-Hybrid 91.1 mpg
The Porsche Panamera S E-Hybrid has an official fuel economy figure of 91.1mpg and emissions of 71g/km CO2 – this means that this Porsche is exempt from the London Congestion Charge.
Electric Executive Cars
The Tesla Model S is all-electric and has a driving range of between 240 and 300 miles depending on the model. It also has a 0-62mph acceleration time that competes with supercars yet it’s even available with 7 seats.