[BP-Revo]

Well, lay down would mean a lower cg, but a less centralized one. The closer the weight is to the centerline of the chassis, the better it will handle because there is less weight transfer. The same concept is applied to full size cars.

For example, in an F1 car, the fuel tank, engine, driver, shocks, and pretty much everything is between the front and rear axles, and well within the edges of the tires. Most of the side faring in an F1 car is to reduce drag on the rear wheels and provide an area to house the radiators...thats about it.