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 one-half (1- 1/2) 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:
The Inside
While it's possible to get fairly comfortable in many cars, it's not every
day that you feel like everything is right in terms of your driving position,
and that's how I felt in the Impreza 2.5GT. ...
Vehicle symbols
There are some of the symbols you may see on your vehicle.
For warning and indicator lights, refer to “Warning and indicator lights”.
...
Exterior & Styling
Let's not mince words here: When it comes to styling, Subaru went off the
deep end a few years ago and brought us such gems as the B9 Tribeca — later
blandified — and a couple models whose grilles ...