For the first time in the company's history -extending back over more than 45 years - Mercedes-Benz's performance brand is offering a fascinating high-performance vehicle in the compact class.
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 360bhp 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 181bhp (per tonne) 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.