Exiges rock and I guarentee a well driven one will piss on most things. The other thing that Lotus's have is there own track day club. "Lotus on Track" is the biggest track day company in Europe. Its awsome value, very very well run and its where you will find all the real track enthusiasts.
We had two guys in GT2's come once and they went home at lunch time, because they were being pissed all over.
I'm not saying they are the be all and end all, but they are the best thing round a track that I have ever driven.
Plus mod it with some proper power and they are virtually unbeatable.
I had Porkie in mine the other week and we were out on track with three slick shod Radicals, we had AO48's on and we stayed in the middle of them for about three laps, until the tyres on my Lotus melted.
My car is 790Kg's, I weigh 85kg's and Porkie is probably 86kg's lol. so we weighed almost double the radical.