I've been doing some super and hyper class testing on Putre tonight (didn't write down my times for comparison so of no use for inclusion in any tier lists - which are probably better compiled by faster drivers than me anyway) and like I've noticed before many of the fastest cars in a class are really quite close in the times I'm able to set with them.
In the hyper class the One:1 was the fastest, but only 2-4 seconds (alright, that is a pretty big margin in racing, but it's a long track) ahead of the FXX K, P1 GTR, Rimac and the Huyara. The Venevo was a fair bit slower.
Among the six or seven super class cars I tested out now on Putre the Catherham SP/300R and the Bac Mono (lower top speed than the Caterham, but even faster around turns) took the lead, as I had expected. Can't remember how many seconds they were ahead of the closest tin top cars (AMG GT3 and Renault R.S.01).
Edit: Well the Twin Run is just stupid! Despite a measly down hill top speed of less than 240 kph on Putre, it was just 0.5 seconds slower than the Aventador. And 2 seconds behind the Vuhl 5 and 5.5 seconds behind the Bac Mono.
I would have expected the Twin Run to be ahead of the Aventador on a tight, twisty track with no long straights, but not door to door on such a long point to point track.