You have two wheels side by side in the middle, a single front wheel, and a single rear wheel with the middle wheels being driven. The front and rear wheels could be offset so that they're not on the centerline. This configuration would allow much cleaner aerodynamics on the tail of the body. By balancing the car so that all of the weight is on the middle wheels, with the front and rear wheels just holding the ends of the car off the ground, the car would have a much higher percentage of its weight on the driven wheels than can be attained with a conventional configuration.