My bet is going to be that the 110vac window unit costs considerably less than a replacement compressor for his car. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gifDepending on the car compressors can be exhorbitantly expensive.
The one for my freggin' Geo Prizm (not a fancy car by any stretch of the imagination with its Toyota Corolla powertrain) lists for around $600 //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif