Fun way to ask a girl to prom?

So my girlfriend and I have been going out together for a while now, and I wanted to have plenty of time to get ready for Prom. She absolutely loves my new car and every time she comes over she wants to just drive around. So I have a 1980 Camaro Rally Sport and was hoping to incorporate something with the car into the Proposal. My buddy has a completely restored 1974 Ford F100, and asked his Girlfriend to HC with it (who loved his vehicle as much as my girlfriend loves mine and we always cruise around town with my car and his truck). Him and I went mudding and got the truck all nice and dirty then wiped out the word "Prom?" on the side of it. So can you think of a way that I can incorporate my car with the proposal? And also maybe my buddy and I can both ask at the same time with both our vehicles. Any ideas?

When she's outside of school pull up to her in your car wearing some sick shades and a leather jacket and be like "get in sexy" or something like that and have some roses and a letter that says prom? Inside it.

Poop

Put the propasal all over the car and when she's in class on a high floor take the car into the parking lot outside her class and do circles while she reads the car. Along with some cheesy 80s music playing from a boom box and you dressed like crybaby

What else does she like? Man lets plan this! Ill be your random internet person wingman lad!

I asked my girlfriend to prom dressed like Tom Cruz from Risky Business while I was slid into her room with the song playing in the background, and everything and held up a sign that said "Prom with me is Risky Business". Just be creative and include the things she likes. My girlfriend at the time was obsessed with Tom Cruz. Haha, good luck.