Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1½) 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.
See also:
Architecture and suspension
The story starts with the XLR's backbone, upon which the car's dynamic
capabilities depend. Based on GM's new performance car architecture, this unique
and patented structure comprises steel hydro ...
Rear Vision Camera Location
The camera is located above the
license plate.
The area displayed by the camera is
limited and does not display objects
that are close to either corner or
under the bumper. The area
displ ...
Immobilizer Operation (Keyless Access)
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the ignition
control knob is turne ...






