See also:

Tire identification marks
Tire size 255/50 R 19 103 Y 255: nominal width in mm 50: aspect ratio in % R: radial tire code 19: rim diameter in inches 103: load rating, not for ZR tires Y: speed rating, before the R on ZR ...

The BMW X3 xDrive35i: Class leading performance and efficiency.
The new top model BMW X3 xDrive35i features BMW's newest turbocharged 3.0-liter inline-6 "N55" engine combining direct fuel injection, twin-scroll turbo technology and Valvetronic. The N ...

The concept
The system is functional at speeds beginning at approx. 20 mph/30 km/h. It maintains the speed that was set using the control elements on the steering wheel. The system brakes on downhill gradie ...