The systems also work in real time, refreshing as the car ... navigation expanding greatly. Road and Track does an excellent job of sussing out the differences between various types of aftermarket ...

Aftermarket navigation systems are not cheap, though neither are the nav units that come bundled in your car. Aftermarket units can start in the $500 range but easily skyrocket up to $2,000 ...

Aftermarket backup cameras have adopted various designs. A small video camera is sometimes built into a license-plate holder or mounted in a trailer-hitch receiver or on a car's bumper.

In the mid-1990s, car navigation systems emerged, and by 2000, in-dash systems became a luxury car option. Subsequently, aftermarket in-dash navs became available, and factory-installed units ...