2015 Ford Mustang with V6 and automatic transmission: When shifting from reverse to drive, there is a 2-3 second delay before the transmission will engage. The car feels like is may stall. There is also a delay when accelerating from a stop. If you continue to apply the accelerator during that 2-3 seconds, the car may eventually accelerate wildly, especially during wet conditions. This problem has been reported to Ford several times. They said this is normal for the car. It is hard to understand how a MUSTANG can behave this way. If it was a Taurus, I might understand, but a Mustang?