The great thing (well, one of the many great things) about Forza Motorsport 4 is that you can build your ideal supercar. You can choose the type of wheels, suspension, paint job... pretty much anything, really. So Microsoft decided to let Forza fans do the same, only with a real car - which was subsequently built by mechanic and obvious car nut Paul Sanderson in one week. In a shopping mall. No one man should have all that power, BUT HE DOES.
Incidentally, we only just got the reference regarding that song that plays on the Forza adverts. It's Kanye West's 'Power', right? Well, 'Forza' is Italian for 'Force', as in 'strength'. Or 'power'. Aaaah, now it makes sense. Presumably that's what the chanting is at the start of it: 'Heeeey' is the chorus line questioning the relevance, then 'aaah' as they understand.
That's how hip hop works, you know - it's actually very literal. Yep.