Volvo 2011 C70 Owner's Manual page 66

02 Instruments and controls
Trip computer
stored and remains in system memory until the
RESET (button 3) is pressed again.
02
MPH ACTUAL SPEED (Canadian models
only)
This function provides the driver with an instan-
taneous conversion of the car's current speed
from km/h to mph.
NOTE
Trip computer readings may vary slightly
depending on the circumference of the tires
on the car, tire inflation, or driving style.
66