It is the same auto as the C7, (8L90E) and the TR-6060 is an awesome transmission and it's extremely durable. I've beaten the hell out of mine on the track (600whp CTS-V) and I've never once had an issue with it. The car now has 46,000 miles on it and it still going strong. That being said, I think it's the best manual trans out there at the moment and it certainly has a proven history to say the least.
The A8 is a great transmission in this car and it certainly makes it easier to be consistent at the track. Having driven the ATS-V a lot and with both transmissions, I would choose the TR-6060 as the car is way more fun to drive with a manual IMO. The engine revs freely, the clutch is light, (very easy to live with in traffic) and it makes the car more entertaining/engaging to drive than the auto does. Having launch control also helps maintain consistency at the 1/4 mile track and the rev matching makes it much easier to drive on a road course track for those who are unable to heel-toe downshift. Three pedals for life!!
The A8 is a great transmission in this car and it certainly makes it easier to be consistent at the track. Having driven the ATS-V a lot and with both transmissions, I would choose the TR-6060 as the car is way more fun to drive with a manual IMO. The engine revs freely, the clutch is light, (very easy to live with in traffic) and it makes the car more entertaining/engaging to drive than the auto does. Having launch control also helps maintain consistency at the 1/4 mile track and the rev matching makes it much easier to drive on a road course track for those who are unable to heel-toe downshift. Three pedals for life!!