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 ...

Drivetrains
The 528i, 535i and 550i are rated at 240, 300 and 400 horsepower, respectively. The turbocharged version of the 3.0-liter inline-six-cylinder in the 535i makes the 550i superfluous, rocketing the ...

2011 BMW 1 Series M Review by Joe Wiesenfelder
Based on the BMW 1 Series, the 1 Series M takes its place among M performance versions of the 3, 5 and 6 Series cars and the X5 and X6 SUVs. Though the name "M1" seems a natural, BMW use ...