Mar 2016 Though the new four-cylinder diesel engine in the Mercedes E 220 d is impressive, those with a bigger budget will love the E 350 d's V6.

Feb 2016 The M-branded BMW X4 is fast and competent, but Irish SUV buyers only want diesel power.

Feb 2016 The biggest and best addition to the revised BMW 1 Series is the terrific new 1.5-litre three-cylinder diesel engine.

Feb 2016 The electric Volkswagen e-Golf proves just as impressive as its petrol and diesel siblings.

Dec 2015 Can a new diesel engine lift the mid-size Jeep's game to allow it to compete with Audi, BMW and Land Rover?

Dec 2015 A 1.0-litre petrol engine provides a real diesel alternative in the new Opel Astra.

Oct 2015 Jaguar hit the sweet spot with its diesel XF, but can the F-Type-engined XF S impress with 380hp?

Oct 2015 The new Opel Astra in 1.6-litre diesel form now competes with its more premium rivals.

Aug 2015 Mid-life update sharpens the diesel Outlander and makes it a much more compelling purchase.

Aug 2015 Not many people need diesel power in their small cars, but the Opel Corsa 1.3 CDTi is one of the best.