I thought it would be good to bring these links over here for future reference.
http://www.alloywheelsdirect.net/mercedes_wheel_fitments.pdf
http://www.miata.net/garage/tirecalc.html
http://www.1010tires.com/WheelOffsetCalculator.asp
http://www.discounttire.com/dtcs/infoTireMath.dos
http://www.alloywheelsdirect.net/mercedes_wheel_fitments.pdf
http://www.miata.net/garage/tirecalc.html
http://www.1010tires.com/WheelOffsetCalculator.asp
http://www.discounttire.com/dtcs/infoTireMath.dos