The RS 5 dusted all the other cars in lap time @ Grattan Raceway, so that tells you something about its overall balance.
Also, FWIW, APR just took their in-house development RS5 to the drag strip to document before/after performance with their new tuning. Stock it ran 12.4xx @ 110.xx MPH. Their tune improved that to 12.2xx @ 111.xx mph. http://audirevolution.net/forum/inde...29484#msg29484