What’s the first word that comes into your head when someone says ‘AMG’? For most of us, that word will probably be ‘power’. Mercedes might not be dominating Formula 1 at the moment but ...

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 ...