2006 BMW 5 Series 530xi 4dr Sedan AWD (3.0L 6cyl 6M)
I traded in my 2006 530i, which I thought was the best handling sedan I'd ever driven, for the 530Xi. The 530Xi's handling is beyond description, it goes around turns as if on rails, irrespective of road surface, rain, snow or gravel. The combination of X drive with Dynamic Stability Control is brilliant - as you enter turns, power balance is to the rear, then near apex it is 50/50 and then as you exit, it seamlessly shifts forward pulling you around the turn. The N52 engine hauls like a grand prix engine, generating breathtaking g-forces as you rocket around the corners. I don't find any acceleration deficit vs the 530i - bottomline - the 530Xi is awesome!!! Porsche/Ferrari drivers take note.
The steering is pin point and gives great feedback. The handling is without peer. The combination of AWD with DSC is awesome. The engine is a symphony of mechanical whirring sounds--more turbine than 6 cylinder, more V12 than 6. The six speed automatic is a blast in sport and manual mode.