Is the full Silverstone F1 lap configuration the same as used for actual car track tests? I've been simul- driving laps with courses and cars as listed at FastestLaps.com and have been pretty close except for Siverstone full track, there real cars seem to have 18-20 seconds off. Is the track layout different for them, ie, maybe the last chicane is not used or some other shortcut? I mean a stock Murcielago SV doing a 2:08 on CM or CS seems too quick.