The best:Twin Turbochrged 3.0 Liter i6 cylinder engine: N54
The worst:Water got into the driver's headlight, shorting the lighting module & causing a small fire. CAS module wires singed, leading to DME communication failure.
The best:I like the touring and really enjoy long runs (2500 miles), you can feel this car really like motorway (autobahn) run. Like the it looks and full of with space.
The worst:Repair cost hence BMW and they like to charge gold price for everything.