When AMG gets its hands on a new Mercedes, wheels start turning and Mercedes performance becomes something astounding. The A45 AMG is no exception. Yes, it is a four cylinder; sure, it is a compact hot hatch. But with the AMG upgrades, it is nothing less than one of the best-performing hot hatches in the world. AMG starts with a sound, performance-driven luxury five door compact, the A45, which is an already nimble package. When you add the AMG AWD, it becomes a profound track performer. Setting records at the track is up to you, but the A45 AMG has set its own records already, in a category that is particularly attractive when it comes to racing: power. Loads of horsepower are pumped out of the 2.0-litre four-cylinder engine via a high-pressure turbocharger that receives a race-car-like 26psi of boost. The result is more horsepower per litre than a Porsche GT2 RS, a record for road-going cars. So, take it to the grocery store or take on all comers when the green light hits; the A45 AMG will not disappoint.