General Motors 5350 Design Studio Gravity car entries. These two vehicles were conceived, designed and executed at the 5350 studio for a Southern California Gravity race series for charity. The charity had involved all the southern california studios to compete and come up with individual designs. The cars were then to be auctioned off as fundraisers for the charity. Unfortunately, the charity was suspect and the series organization fell apart. These cars were designed and built using as many weight saving and minimal rolling resistance techniques as possible, ie. ceramic bearings, thin wall tubing, carbon fiber bodywork etc.