If you're having problems with removing the last lug, try rotating the wheel so that it is on the topmost position. Put the car back on the ground and use a tire iron. If it still won't budge, get a long pipe and slip that over the tire iron to give you more leverage. If you break the stud instead of taking the lug off, chances are that whoever put it on cross threaded it. Don't worry if the stud breaks, it can be replaced.

 

it times like this that explosives would be nice