Tips for car sex

So my boyfriend and I normally have sex in the car. We don’t live together and are in high school (please don’t lecture me I know I’m young but I love him and we’re always safe) so that’s why we do it in the car. I was wondering if you guys had any tips on positions or whatever for car sex. We would obviously wait until the coronavirus is over and it’s safe to go outside again.

My boyfriend is about 6 feet 2 inches and around 250 lbs. I’m about 5 feet 5 inches and 150 lbs (just for reference). Obviously, there is somewhat of a big size difference between us so it’s kind of difficult for us, but mostly him. It’s hard for me to ride him (but not impossible) because there is not enough head room for me. We normally only do missionary because I’m flexible enough to get my knees by my head, so he has room for him to be on top.

Also we are both pretty kinky and I’m a sub and he’s a dom. I’m case that’s matters for some reason.

Anyways, if you guys have any advice on positions or whatever for car sex that would be greatly appreciated. Thanks!

P.S. We do it in a 2019 Hyundai Elantra. Just so you know how much room we have to work with. We also always do it in the back seat because there is more room.