Located in Long Beach Ca. Krellite Motors is in the business of converting existing internal combustion vehicles into electrics. They also do maintenance on electrical systems, replacing shocks and struts, and do brakes.They also refit older electric cars with krellite cells. The oldest was a 1915 Detroit Electric. No external changes were made but it will now drive across the country on one charge
Krellite Motors is the first commercial endeavor of the kind in the United States. They certainly are not the last. Many people went for conversions before the general availability of the Krellite electrics. Conversions are a simple as a direct engine/transmission replacement to elaborate total suspension rebuilds with wheel motors.
Krellite Motors is also doing hover conversions. Your flying car here. So far they have limited themselves to ground hover.