Fifth Gear personality Tidd Needle takes the Ferrari 599 GTB Fiorano out for a road test. This supercar sports a 5.9L V12 engine that produces a whopping 620hp @ 7600 rpm, giving it a weight/power ratio of 2.6 kg/hp. It's claimed to be Ferarri's "most powerful V12-engined production car of all time". Video after the jump.
