At 450 miles my new 2010 LeMans blue 335ixdrive coupe threw a code that my dealership has read as a Turbocharger overpressure boost. It went into limp mode and sounded like a $60,000 4 cyl rental car. So much for "The experience". We were on I70 doing 75 mph going up a slight incline when it happened. I know, stuff happens but....13 days of ownership.