Airplanes do - why not cars?? LOL! Well, actually - nowadays there is a
lock on the master switch in many of them. Plus cars don run on magnetos
which do not require external power to operate in the same way a
distributor does.

John

On 11/21/2013 11:58 AM, mark drillock wrote:
> Do you want an additional manual switch that could be switched on with
> the key out?