Not sure if the OP is humble-bragging here, or genuinely asking for advice?
Anyway, I haven't banged a chick in a car for years, but if I had the opportunity now, I'd probably look at GoogleMaps for potential sites (cul-de-sacs, small country roads with laybys, industrial estate not used at night, etc) and then go and do a recce first.
Good luck OP.