Tread wear
The tread wear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified U.S. Government test course. For example, a tire graded 150 would wear one and one-half times as well on the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm, due to variations in driving habits, service practices and differences in road characteristics and climate conditions.
See also:
2011 Mercedes-Benz CL-Class Review
The 2011 Mercedes-Benz CL550 is stunning — both to look at and to drive — in
a way not many cars are.
The CL550 is plenty quick, though it's not at the top of the CL-Class heap in
terms of power ...
Comprehensive restraint system for the best possible occupant protection
Combined with the front and rear deformation zones, the high-strength
occupant cell forms an effective basis for occupant protection systems that
include:
adaptive, two-stage airbags for the dri ...
Cleaning the steering wheel and gear or
selector lever
•► Thoroughly wipe with a damp cloth or use
leather care agents that have been
recommended and approved by Mercedes-
Benz. ...