See also:

Tread
The part of the tire that comes into contact with the road. ...

Brow of hill
When driving up an uphill gradient, slightly reduce pressure on the accelerator immediately before reaching the brow of the hill. Use the vehicle's own impetus to drive over the top of the hil ...

Front air bags
The front air bags increase protection for the driver's and front-passenger's head and chest. Driver's air bag 1 deploys in front of the steering wheel; front-passenger front air bag 2 depl ...