hmm.... I've had this conversation with my GF many times.......
We've been together 6 years (Oct 15) and when we met she knew absolutely NOTHING about cars..... She still has a lot to learn about just the basics, but we made a "deal", she'll learn a little about cars (mainly just humor me in the garage.....) and I'll learn how to dance..... so... very soon I'm gonna find some dancing lessons somewhere, or she's gonna teach me, whatever. I think that something like this works really well in relationships.... She helped me swap out a trans once..... Something about grease/oil on a woman drives men crazy, I think maybe because it "prooves" their love.
But like it's been stated before, there are a LOT worse things that he could be spending time on, but there are still a lot better things that he could be spending the money on......
If he's like me, buying cars fixing them up and reselling them, he might be saving up for a really "big" purchase..... Just something to consider also. Although it sounds like this is only about A (one) Supra...... Luckily, I don't have to worry so much about spending too much time in the garage, my GF is out of town (about 2 hrs away) at college, so I don't have to see her everyday.
My GF and I also have this thing where I clean her car out for her, wash/wax it, and do whatever else is needed to it every once in a while. make him pay up.... :biglaugh: