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I am planning on twin motor direct drive; so they sit "back to back" under the driver's feet and have drive shafts straight out the the front wheels. The motors I was using in the model are 12" in diameter and about 10" long. There would be the controller and the the charger also in the motor bay. All the batteries are in the floor.
Initially, I will use 15" 175 or 185 tires on steel wheels with the holes in the rim sealed over. There will be full skirts front and back -- the front ones are hinged and they get pushed out by rods attached to the steering rack. Eventually I was hoping the use something like the ERW (Energy Return Wheel) which are much lower rolling resistance and are not inflated. If they could be made much stiffer than "normal" tires, then I could use regenerative shock absorbers similar to those made by Levant Power.
The underside between the front wheels is about 6" above the ground, and the rear bumper is about 11" above the ground. The rear track is about 7" narrower than the front track.
Front suspension will probably be typical lower 'A' arms with struts; but the rear suspension will likely be dual trailing arm with a lateral link into the center of the floor between the wheels. There will need to be front and rear subframes to "cradle" the fiberglass foam composite sandwich chassis.
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