permissions

i've tried searching the forums but cant find what i need.

I am looking to let other test drive a car i am making, how do i allow others to drive the cars without giving ownership to them?

Somewhere in the vehicle script it's checking whether the person trying to drive is also the owner, and if not, probably llUnSit(). It's probably in a changed() CHANGED_LINK event handler, for when the person sits. One could just change that to test "if (TRUE)..." (I've never understood the appeal of vehicles in the first place, so I wouldn't much mind if somebody drove off with the dealer's Maserati), or somehow conditionalize the test on whether it's a "dealer car"... or check if it's on the dealer's land... or something like that.