Here's a solution that may help. Here's what you'll need:
1 friend, preferably named Barney
1 really good saw for cutting metal
Use really good saw to cut huge hole in floor boards, then don't go anywhere without Barney. The two of you ought to be capable of stopping the car by putting your heels down. You can even get an extra acceleration boost by using your feet to help with power.
Hope this helps!
b