We must first set one thing straight: to all those currently bubbling in a state of confusion, this car is not the Nismo Juke that was shown at the Tokyo motor show last weekThat car was a lightly tweaked concept marking the arrival of Nismo (Nissan Motorsports) as a proper in-house performance tuner for Nissan, like AMG is to Mercedes.No, this is the one-off, GT-R engined Nissan Juke-R. ‘Jukezilla\', if you will.After an arduous build process that involved cutting out almost everything that powered the standard car and filling it with lots of GT-R - engine, diff, gearbox, attitude - Nissan has announced the car is finally ready.And what to do with this monstrous lump of crossover SUV? Why, belt it senseless around Silverstone, naturally.First, Nissan\'s crack team of modders took the Juke-R to the MIRA proving ground to check everything worked properly and that the ruddy big 3.8-litre twin-turbo engine didn\'t fall out or consume the world in a fiery explosion. Then, off to Silverstone for some screechiness.