According to Shoebox303 on this thread, you can't fit a full sized spare in there:

http://www.greenhybrid.com/discuss/s...ull+size+spare

Pity, I've always had full sized spares in my previous cars. I do have one question also. This is my first car with alloy rims, is it true they can't take much abuse? An SUV owner only noticed a flat halfway to work and just those few miles of driving ruined her rims such that she had to get a new one for alot of $$$.