I bought a set of foam Race Ramps about a year ago and really just never use them. They are in great shape, tags still on them, etc.
They are 11" tall and will support 1500lbs each (or the pair will hold 3000lbs). They are also very low profile. My E46 M3 is lowered about 1" in the front from stock and I'm able to get on the ramps without issue.
I'm only selling because I really never use them.
Here's the details: http://www.amazon.com/gp/product/B00...ls_o00_s00_i00