157mph according to the performance figures in the May 1996 issue of PERFORMANCE CAR magazine (got a HUGE stack of back issues in my bedroom).Looks like 168mph for later models according to TIMES ONLINE motoring section
http://driving.timesonline.co.uk/tol...1075266.ecebut I think I recall them (at least the early models) being artificially restricted to 155mph, and I think it was possible the same deal with the Nissan Skyline, but it's been a while since I've read up on these 2 cars.