Was driving down the freeway when the car lost coolant. discovered road debris had punctured the secondary heat exchanger located on the lower front passenger side. the front facia provides absolutely no protection from debris and other damage was noted on the exchanger surface. had to pull over as the engine overheated and get the car taken to the dealer for repairs. this seems to be a design flaw - searching the internet there are several incidences of punctured heat exchangers.
From 3 months of ownership until now 12 months i have been experiencing multiple engine misfires. i've taken it to the dealership but that has been hopeless. they simply clear the code and it pops back up on my way back home. it's a little frustrating when you pay $40,000 for a car and experience problems in as little as 2000 miles.