Mercedes-Benz A 45 AMG Specifications: Displacement 1991 cc Bore x stroke 83.0 x 92.0 mm Compression ratio 8.6 : 1 Output 265 kW (360 hp) at 6000 rpm Max. torque 450 Nm at 2250 - 5000 rpm Engine weight (dry) 148 kg Maximum engine speed 6700 rpm Power density 133 kW (181 hp) Peak pressure up to 140 bar Maximum charge pressure 1.8 bar Fuel consumption NEDC combined 6.9 -- 7.1 l/100 km CO2 emissions 161-165 g/km Emissions standard EU6 Acceleration 0-100 km/h 4.6 s Top speed 250 km/h* *electronically limited The A 45 AMG is representative of the "AMG Performance 50" strategy for the future, which is to run up to the 50th birthday of Mercedes-AMG GmbH in 2017. With a maximum output of 265 kW (360 hp) and up to 450 Newton metres of torque, the AMG 2.0-litre four-cylinder turbo engine is the most powerful series production four-cylinder engine in the world. The sensational power density of 133 kW (181 hp) outstrips even the most powerful super sports cars. At the same time, the engine also boasts supreme efficiency and complies with the EU6 emissions standard. The A 45 AMG also leads its segment in terms of fuel consumption, running on 6.9 litres per 100 kilometres in NEDC combined mode. These credentials indicate that a further high-performing member of the BlueDIRECT family is now taking to the road. The performance-oriented AMG 4MATIC all-wheel drive onboard the A 45 AMG sets new standards in the car's segment.