Thx for posting, will give it a try later during the week or next weekend.
I tried all the car you shared MrSpark,
the C60 hybrid have better corner entry than the C60 pescarolo, very stable and a lot of front bite, but suffer from oversteer on acceleration out of corner, its harder to put the power on the ground vs the older C60, it did 5:49.
The R89 did 5:47, could been slightly better but the top speed was not that great vs the GTone and 787B, it had great balance and grip though.
The Toyota GTone did 5:41.915, It keep pulling on higher speed like the 787B, very nice car.
Started to run the Audi R8, its late though ill have to retest next time, the car feel great and have an awesome turn-in, it should be close to the 787B and GTone.