Air Compressor/Inflator, Bon Air

It's much more powerful than the ones you plug into your cigarette lighter socket, that's for sure! It actually weighs and feels like a real air compressor and not some cheap toy. It fills up your tire pretty fast. The only thing I don't like is the short power cord, but just go the the local 98 cent store and get a power cord. This is Bon-Aire model is a good buy!
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Q Industries MV50 SuperFlow Hi-Volume Air Compressor

This sturdy air compressor is perfect for trucks, SUVs, RVs and other full-size vehicles, and is designed for everyday use - from blowing up your kids' soccer ball to filling up a flat tire. The MF-1050's 12 volts of power and 150 PSI capacity is comparable to other higher-priced compressors. Features include: 10 foot power cord to reach around the vehicle, detachable hose 16 feet long to connect from compressor to tire, built in pressure gauge, and alligator clips to hook directly to battery. Flow up to 72 lpm (2.54CFM), max amps 30, individual weight of 10.25 lbs. Adapters and carrying bag included. Great item if you have an SUV and need air for off road activities.