Im afriad I agree with your 'real world' but have to disagree on a track.
Ive seen 10's of CTR down the 1/4 strip and never return times I have
I cant find the link but there is a nice video of a PD130 with a map, and a CTR going around a track, and the CTR cant get away, and in the end the PD130 gets past.
Same thing with JBS Mike's video on Donnington this year, 2.0 Clio Sport gets easily over taken by EdButler in his PD130 and Mike then comes up behind and sticks there like glue in his PD130.
Ive taken mine round a public toll road in germany and was alot, lot faster than most cars on there at the time (including a few MX5's that life there!)