I found a perfect air compressor for my smart car and just wanted to share the info for those of you who do not already know about it.
As with most, if not all, G&K cars, there is a big hole where the compressor is supposed to be. I measured the hole and it is about 6.5" x 6" x 3" deep. Went to Wal-mart and found one with the exact dimensions. When I went to see if it would fit the hole I was pleasantly surprised to see that the fit was better than good, it was actually perfect. Not loose, not tight, just snug. My only guess is that it must be the exact model that was originally in there.
I only wanted the compressor but it also came with a bottle of "Slime" sealant and some various valve fittings (valve removal tool, adapter, etc. for installing the sealant if needed). Total cost $19.00, plus tax.
The kit is called SMART SPAIR (correct spelling) and sold under the brand name "Slime".
No, I do not have stock in the company.

Just wanted to share. Forgive me if most everyone already knows about this.
Bill
Corpus Christi, TX