This is an in depth video comparison of the 2 stock machines: Audi R8 5.2ltr V10 plus vs Nissan GTR V6 3.8 ltr Twin Turbo. Both are all wheel drive.
For specs: 1:47 in video, followed shortly by 0-60 and 1/4 mi times. 0-60 times: Audi 3.2, GTR 2.7. 1/4 mi: Audi 11.3, GTR 11.0. They took them both out on a road course track. Track times: Audi 1:21.9, GTR 1:19.55.
Audi is a bit oversteer while GTR is balanced. Audi is 200 lbs lighter with 5 more HP but GTR has 65 more torque.

2014 Nissan GT-R Track Pack vs 2014 Audi R8 V-10 Plus! Head 2 Head Episode 33 - YouTube!