I've recently moved to Arizona and am thinking of buying a new car. Now that I have to drive in stop and go traffic with temps well into triple digits, air conditioning has become very important.

Would anyone know if the A/C in the current E-Class is any more efficient than that in the W124? Is it pretty much the same system?

Do American cars have more efficient A/C?

How about Lexus?

TIA,
Bud