The R has so much grip compared to the 35 and the turn in feels quicker as well, you can put the car into a tight turn and get on the power no under steer it just shuffles the power and off it go's!
The car I took out had the adaptive chassis control with the 19s and the ride even in Race was more comfortable than my 35.
I'd say it feels more focused but you can pop it in comfort and it's like a normal car if you like that sort of thing.
It's worth a drive for sure but it might cost you ;-)