Copy/paste from another thread:
There is no 'cost' due to free trade. You can drive it back if you want.
I've done it before, so here you go:
Before you even buy the car...call GM of Canada (or Ford of Canada, or whoever) and have them send you the EPA and US crash-testing paperwork. It's basically a letter that says the car is certified to drive in the USA. It'll cost you a small fee, $65 or so. * If you don't have this, it's not going to happen *
When you cross the border, explain to them that you're bringing the car over-they'll have you fill out some paperwork. You can print those forms out and bring them with you, I'm sure they have copies at the border though.
They didn't even look at my car. I figured they might pop the hood and notice the headers and the fact it had no cats, but they didn't even look. They'll finish filling the forms out and give them back to you. It's very simple, you should be in and out in 15 minutes.
You take those forms, and the Canadian title to the SOS, and you register it like you were buying a car from Ohio. Very simple. You'll get a Michigan title and you're all set to go.
Have fun answering questions why your MPH is in little numbers and the KPH is in big numbers to all your friends.
