P Metric
With the P-Metric system, Section Width is measured in millimeters.
To convert millimeters into inches, divide by 25.4. The Aspect Ratio (Section Height divided by Section Width) helps provide more dimensional information about the tire size.
Example:

(1) P = Certain tire type used on light duty vehicles such as passenger
cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7 section width).
(4) R = Radial Construction
(5) Rim diameter in inches
See also:
How to insert a CD(s) (type B)
1. Briefly press the button. If
the
magazine in the player has an idle
position where you can insert a disc, the
disc number indicator associated with the
idle position will blink.
If no i ...
Power seat (if equipped)
WARNING
To prevent the passenger from sliding under the seatbelt in the event of a collision,
always put the seatback in the upright position while the vehicle is in motion.
Also, do not place ...
Construction
The generic name of each cord
material used in the plies (both
sidewall and tread area) of this tire.
For example, “PLIES: TREAD 2
STEEL + 2 POLYESTER SIDEWALL
2 POLYESTER” ...
