Mercedes has added two new diesel engines to its A-Class model.

The new engines (badged A200d and A220d) have been tested to the new RDE-2 rules, with the German brand claiming it is one of the first manufacturers to offer RDE-2 compliant vehicles in the UK.

RDE-2 compliant vehicles remove the current 4% BIK surcharge imposed on all other diesel vehicles. Currently, RDE-2 compliant vehicles are not required to be on sale until January 2021.

The RDE-2 (Real Driving Emissions) testing regime require manufactures to certificate vehicles under real driving conditions – ie, not in a lab. To qualify, a vehicle must not emit more than 1.5 times the amount of NOx during the non-lab conditions compared with its figures from the lab tests.

New A-Class engines

Because of the removal of the diesel BIK surcharge, Mercedes claimed business users who pay 40% income tax and decide to take on the A220d can save £460.68 over three years in comparison to the old model.

The A200d features a 2.0-litre engine that produces 150hp, emits 110g/km of CO2 and returns 67.3mpg while the A220d is powered by the same engine, albeit with 190hp. It emits 114g/km of CO2 and returns 65.7mpg.

The A200d is available in two trims – 0 Sport and AMG Line – while the A220d is only available in the AMG Line trim.

Sport trim line comes with a multimedia system with voice activation, a seven-inch cockpit display and seven-inch touchscreen media display, a reversing camera,  17-inch alloy wheels, a sat-nav, Active Lane Keeping Assist,  Speed Limit Assist, automatic two-zone climate control, LED headlights and tail lamps and dark carbon fibre trim with Artico and Fléron fabric upholstery.

The AMG Line trim, meanwhile, adds 18-inch alloy wheels, a diamond radiator grille, Artico and Dinamica microfibre upholstery and three-spoke sports steering wheel.

Prices for the A200d start from £28,805 while the more powerful model is priced from £30,005.