Got stuck on dry pavement

This was a new one. Drove my car over to a buddy's house to keep it in his garage for a few day's so I could do some work on my garage. My friend has a little bit of a sharp incline up his short driveway into his garage so when I pulled in, I came in at an angle so I wouldn't drag the front splitter. I started up the driveway and the car just stopped and rear wheel just started spinning like I had hit a patch of ice. Stopped, backed up and tried it again, same thing. So I'm sitting there half in half out of the driveway trying to figure out what the hell is going on when my buddy who has been watching the whole thing tells me my right rear wheel is coming completely off of the ground when I get over half way in the driveway. I finally got it in but I had to change the angle of my approach even more and had to do about 4 up and backs to get it in the garage door.