Those who've have car sex, how was it and how did you do it (logistically)?

Title sums it up. I'm still living with my parents but also want to have sex with a fuckbuddy of mine. My car is probably the easiest place in terms of accessibility, but it's a small city car (vw golf) so I'm unsure of how we'd do it logistically.

Anyone got any experience with car sex and what positions work well?