The r8 was declared the Sports Car of the Year, the 430 Scuderia won "fantasy car" of the year, and the GT-R won supercar of the year.
Supercar of the Year: Nissan GT-R
'The GT-R is monstrously good. It locks on like a missile. Seriously, this thing hooks up and accelerates like a Bugatti Veyron. Its body control is breathtaking, too - you just know that this car has been meticulously engineered down to the last tiny grommet. I seriously doubt that there is a car on the planet that can corner faster or more aggressively than this.'
Jason Barlow
Not sure what the difference between all three categories are to be quite honest. This is a big pat in the back for nissan seeing as many of the European elite and other demographics doubted the GT-R's right to bear the cachet of "supercar".
TopGear Article on GT-R and GT-R vs R8 comparison
Top Gear GT-R Article