Just got back myself, done 400miles today in the S2000, that makes 1100miles in 9 days of driving it.

Managed to get 29mpg on the tank today, burnt 1 + 1/3 tanks of fuel
Some ace cars there, that megane was very nicely put together. I love looking at all engineering behind the different cars. My mate always just looks at a car by the aerodynamic features on it lol. Guess that's what happens when your an F1 aero designer. Went around a lot of the cars and sat in them, got chatting to a nice lady who was asking us what colour 350z she should get.
The Rs4I sat in was a bit odd, loads of switches everywhere, even some in the door pocket

centre console stopped the handbrake going on fully and the gear change would be very difficult with the arm rest fully down.
I too am very sunburnt. Don't notice with the roof down on the way back thru the windy A roads, got to some traffic lights near my mates house and I looked at him and he was bright red! I was the same. The air blowing about means you don't notice the heat