A standard Mk2 RS can just about handle 305hp through the front wheels. Imagine it with 20 per cent more oomph Tuning is one of the more divisive practices you can attempt as a car enthusiast.

All three generations of the Focus RS have their own unique character, but the Mk2 was arguably the most impressive of them all. When launched in 2009 it was one of the very first hyperhatches ...