In the compact segment, Mercedes-Benz already offers a plug-in hybrid variant in every model range – A-Class, A-Class Saloon, B-Class, CLA, CLA Shooting Brake and GLA. Running together, the 160 kW (218 PS) 1.33-litre four-cylinder petrol engine and the 75 kW electric motor produce a system output of 160 kW and a total maximum torque of 450 newton metres. The key characteristic of the electric motor, full torque from standstill, makes the compact plug-in hybrids exceptionally responsive, as reflected by the dynamic performance figures. For instance, the A 250 e completes the classic sprint from 0 to 100 km/h in just 6. 6 seconds. Even running on electricity alone, it can reach a top speed of up to 140 km/h – more than enough to make good progress on the motorway within the speed limits of most countries without using the engine.
The electric range is more than 70 kilometres (NEDC). The lithium-ion battery, with a total capacity of 15.6 kWh can be externally charged with either alternating current (AC) or direct current (DC). At a 7.4 kW wallbox (AC), it takes around 1 hour 45 minutes to charge from 10 to 100 percent SoC (State of Charge). Using DC rapid charging with a maximum of 24 kW, it takes around 25 minutes for the battery to go from 10 to 80 percent SoC. To ensure minimum restrictions in the luggage compartment compared with non-hybrid sibling models, the exhaust tailpipe is located centrally beneath the vehicle floor and the rear silencer is housed in the centre tunnel. The integration of the fuel tank in the axle space creates extra room beneath the rear bench for the high-voltage battery.