You're seeing the driver's front tire through the fisheye lense in the driver's door mirror. The distortion is the nature of the beast.
2014 X5 35d (Performance Center delivery May '14)
2015 M235i Cabrio
2000 328i sedan (UUC suspension - still the favorite)
SOLD! 2008 E90 M3 SOLD! 1991 325iX (both great)
2012 Mini Cooper - (wife's car)