That's a hell of a place to park your Mini. There ARE some advantages; no jackass is going to park close to you and ding your doors when they open theirs. You're probably not going to be fighting to get that spot. There is no way that parking inspectors will climb down there to give you a ticket.

But there are a few drawbacks too. I'm not sure how well your parking brake is going to hold the wheels in place. You're certainly going to need tyres with a hell of a lot more grip than your average Bridgestones. Unless you're Spider-Man you're probably going to have some difficulty getting down the wall to get back in the car. And sometimes it can be hard enough doing a turn across traffic in two dimensions; in three it will probably be nightmarish.

I think this is possibly even too groovy a spot for "Real Groovy".