Buy a used CO2 tank (#20) from a welding supply store. Throw a decent regulator on top, along with a guard and a decent quick connect air hose. There is no small/portable compressor in the world that beats the speed and reliability of this system. No power is required, tanks are bulletproof, regulator/flow are fast, simple and adjustable.
If you have money to burn, get the top of the line PowerTank system, with a regulator that will flow 45 CFM at 250 PSI. Do you need this for tires? Nope. Is it nice to pick up a bottle and not have to deal with a plug in compressor kit that takes 30 minutes to inflate all four tires? Yep. A CO2 bottle will also run air tools, blow dust out of campers and tents, pop a bead back on a tire and do many more tasks that you will never be able to accomplish with a small or low volume portable compressor.
If you insist on a portable 12VDC compressor, get an ARB and put it in a Pelican case with an Anderson plug to attach it directly to your battery. You should also buy a folding chair and a six pack because you are going to be there awhile.