See also:

Reporting safety defects
For USA If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA ...

Readiness for Inspection/Maintenance (I/M) test
A vehicle equipped with Four-Wheel Drive (4WD) should never be tested using a two wheel dynamometer (such as the dynamometers used by some states for emissions testing), or similar equipment. ...

SENSE AND STYLE
Family Friendly (Not Really, Fair, Great, Excellent): Excellent Fun-Factor (None, Some, Good Times, Groove-On): Good Times ...