 My wife bought the Ecoboost Premium version of the 2016 Mustang as her everyday commute car. First few month, everything was perfect. The car drives great and have good responsive handling. And acceleration when fully step on the pedal is just fun. But when the nightmare comes, one hot summer morning, the AC started to act really strange. It is blowing hot air on driver side, and warm air on the passenger side. Took it to dealer to fix... It took couple days for them to finish replacing the Evaporator (That's what they said was failed.) Have to go through the hassle of driving to another location for a rental car, as the dealer does not have any loaners on the lot, which wasted us a lot of times and ordination. Then it come back to us, and worked for another 2 or 3 month. Then suddenly last week, AC started to blow hot air again... We took it to dealer AGAIN and this time it took them 3 days to fix, and they told us the problem was the Evaporator AGAIN... Well thank god this car is only a 2 year lease. And after the lease end we are seriously considering other alternatives.. Ford AC tends to fail fairly quickly as my wife's previous car -- A 2004 Ford Mustang had AC failure after only 60000 miles of driving.  The AC problem absolutely kills the joy of driving this otherwise very fun machine.