See also:

Remove unnecessary cargo
Additional weight increases fuel consumption. ...

Airbags
Airbags 1 Front airbags 2 Head airbags 3 Side airbags ...

Treble, bass, balance, andfader
► "Treble": treble adjustment. ► "Bass": depth adjustment. ► "Balance": left/right volume distribution. ► "Fader": front/rear volume ...