 I've driven the Mercedes CLS 63 AMG for four years.With 66,000 miles on it, I was informed the intake manifold was cracked.No explanation how it could have happened.I decided to spend my money on the Tesla S.It has been the most fun I've ever had in a car.It's quick, responsive, and I've already saved over $1,000 in gas.No emissions, I plug into my house charger and it charges an hour or two when I get home.My electric bill is up $15 bucks a month.I've had a few questions, and I've taken my car back into the service center once.The guys at Tesla are amazing, friendly, and efficient.