With an output of up to 310 kW (421 PS), the completely newly developed 2.0-litre engine is the world’s most powerful turbocharged four-cylinder manufactured for series production. Mercedes-AMG has bettered the output of the preceding engine by 30 kW (40 PS). Maximum torque has also increased from 475 to up to 500 newton metres. With an output per litre of up to 155 kW (211 PS), the new Mercedes-AMG high-performance turbo engine even ranks ahead of many well-known super sports car engines. The new, highly efficient powerpack is produced on an innovative production line in Affalterbach, Germany, on the “One Man, One Engine” principle.
In the 45 models, the four-cylinder ensures extremely agile performance in two output classes: with 310 kW (421 PS) as the S-model and with 285 kW (387 PS) in the basic version.
This positioning logic has already proved successful for the AMG Performance models with a V8 engine, and meets individual customer wishes even better. The new compact sports cars absolve the sprint from zero to 100 km/h in record time: the A 45 S 4MATIC+ requires only 3.9 seconds (CLA 45 S 4MATIC+: 4.0 seconds), while the basic A 45 4MATIC+ model absolves this discipline in 4.0 seconds (CLA 45 4MATIC+ in 4.1 seconds). The top speed of the basic models is electronically limited to 250 km/h, while the S-models are capable of up to 270 km/h ex factory. With the optional AMG Driver’s Package, the top speed can also be increased to 270 km/h for the basic variants.