ABOUT AUTO PAINT - PAINT STRIPPING
WHAT IS THE BEST AND QUICKEST WAY TO STRIP THE PAINT OFF OF A CAR?

The most common methods of paint removal are sand-blasting, plastic blasting, chemical stripper or sanding.
Sand-blasting is not recommended as the high energy tends to create heat and warp the sheet metal, which creates a whole new set of problems.
Plastic blasting is good, but expensive.
Chemical stripper is fairly inexpensive and fast, but it is quite messy and be sure to mask or remove all the trim and plastic lens coverings. Additionally, caution must be used to avoid skin or eye contact which could result in severe injuries.
A dual action sander (set to strip mode) with 80 grit paper will do the job nicely, although it may take a while. Follow with 180 in oscillating mode to remove the circular patterns in the sheet metal.