the suspension feels like you're riding on bricks because you are. They are called RFT's. Put on regular tires and your ride will be transformed.
2006 525xi, Orient Blue Metallic, Beige leather, Dark Poplar trim, Premium Package, Cold Weather Package
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, ///M Sport, CW, PP, PS, NAV, CA, LED Angel Eyes, red calipers, pedal covers, stubby antenna.