The new E63 is Merc’s AMG-powered middleweight and follows a tried and tested plan: big V8 + sober saloon = autobahn domination. Well that’s the theory, and this is the reality. So this week it’s the E-class’ turn to have a go with the 6.2-litre V8? Yes, Mercedes likes to spread the bhp love around and so it’s no surprise that the shortly after the release of the regular E-class, we’re now being