The Elise and Esprit are very different cars, there's really no comparison. The Esprit is a very old design, though it's been updated continuously. I hear the ergonomics are really poor, but have not sat in one myself. Performance can be very good in the newer ones, even with the turbocharged four cylidner (a turbo V8 was offered in its final years here). If you go shopping for an Esprit, I recommend you also check out the Acura NSX; it's pretty comparable and very reliable.