From the M4 up to the turn off for Wantage and the science park. Sounded great when you put your foot down a little going up the long hill just before I turned off!
That will be a 122 with 12psi the same as mine. First time Ive followed a R8 and they look HUGE on the road. My VXR600 Monaro is big but seems to hide it well compared to the R8!