I am currently running the rear engine configuration, but I have a mid motor car built up also. I have run the mid motor and it is very, very fun to drive. We are fortunate enought to have our UK and European drivers shaking down the mid motor set-up while we refine the rear motor here in the states. I see alot of people running the mid motor here in the states so we will be testing it to develop a clay-indoor type of set up. I appreciate the aluminum chassis more and more every time I run the car. Precise yet very forgiving. I am surprised with what I can get away with with this car, yet is is still very fast. It is agile yet forgiving. Very fun to drive and inspiring.....