If your garage isn't big enough for your car anda workbench, you could get a smaller car. Or youcould build a fold-down workbench. This onesets up in seconds and eats up zero floor spacewhen not in use. The only things you'll need area 2x4, a pair of beefy hinges, a couple of threadedpipes and flanges, and a handful of screws. For awork surface, we used a30-in. solid-core door,but you can use othermaterials such as twolayers of 3/4-in. plywoodglued together.To set up the workbench,just screw...
Watch out for that PVC!!! I use PEX lines in my garage but at one time used PVC. Read to many people's problems with the stuff. With the PEX fittings they snap right on and if you want to add on another section it's very easy. They are designed for home water lines and can handle high PSI's. A few highend air systems are sold using PEX tubes. They come in red and blue colors and the fittings work with copper or PVC with out any glue.