On the Top Gears Track they had a difference of 0,3s. Here on the Nurburgring Corners are much tighter. Here the Ferrari wins by about 5 full seconds. (Track is 20,8Km long). So it depends on the Tracks Style. As tighter the Corners, as better the Ferrari, as more Straights - better for the SLR.

730917 u wonna bet that slr would spot all over that 599 on the track slr is top 10 cars on top gear as fastes times around the track

Exact whati expected. But : It is just Drag Stripp. Try it on a real Racetrack. There for shure the Ferrari will be in front, he handels lighter in the Corners.