If you’re looking for a small, high-powered air compressor for your vehicle, I highly recommend the Master Flow. I picked one up a while back, but finally got around to using it this morning to inflate a flat tire at 6 a.m. in the rain — and I was very impressed.
The Tsunami is powered by a 1/3 HP oil-less motor that delivers a maximum of 150 psi and features a built-in serviceable air filter. Its large gauge makes it easy to read — like, say, from inside a warm car — and the compressor connects to your car battery with alligator clip connectors. Or, you can permantently mount it and wired it in directly. It comes in a carrying case with 16′ of coiled hose and an easy-twist screw-on brass inflator nozzle.
And I paid considerable more than the $49 — with free shipping, too, dammit — that Amazon wants for it now.