My GSW(S) was New Old Stock (NOS) acquired 4/17 w/ about 190 miles on the clock "feels" cold, has air temp drop of -30F and out put in low 40sF. An emissions update sticker is in the engine compartment. So, I don't think that is it.I wonder though if the "cool" cars have not been emission fixed yet?
As I type this, it occurred to me that many of these cars were NOS sitting for 2 years in varied conditions. Others, the buy backs, may have had less then ideal scheduled maintenance. Add to that the typical dealership service department's demonstrated ability to overlook items and take short cuts. Many have questioned if their oil & fuel filters were changed. it would probably be wise to check the cabin air filters. A restrictive air filter can affect AC system performance.