Posaidon has already been playing around with AMG’s A45 S, lifting output to 518bhp for a ludicrous 201mph top speed, but now the German tuner has worked its magic on the lesser A35. Its new RS ...

Thanks to an extra 102bhp and 74lb ft over factory, the ‘A45 RS 525’ will cover the 0-62mph sprint in a quoted 3.4sec, sooner than even the £188,345 AMG GT R Pro. More impressive still is its ...

Lots of boost means plenty more power. The previous-gen Mercedes-AMG A45 is already quite potent with later models using a turbocharged 2.0-liter four-cylinder making 376 horsepower (280 kilowatts ...