Have a look at a Tomberlin Vanish UTV, 6 speed, stealth mode, AC motor and 4 wheel drive.
It has 3 x electric speed modes and the motor is coupled to a mechanicical 2 spead tranaxle. The only down side it has no differentials so turning is a problem to it on the highway, it certainly isn't made for golf courses. Have a look on the Tomberlin site or follow the link to my website below
http://www.customgolfcars.co.uk/tomberlin%20vanish.html