Little effort is needed to find out the best car GPS system.  Initially this device was used primarily by the military but now it is more available.  A wider variety of these devices can be purchased and some of the best GPS systems are Garmin GPSMAP 76CSx which has as one of its unique features, the ability to obtain signals from satellites at a faster speed and costs around $600.  The Garmin GPSMAP 60CSx is the next best and is suitable for hikers, boaters and drivers, containing waterproof compartments and is easier to use while on the move or in the car.  The Magellan eXplorist XL Handheld GPS Unit is one of the newest and it is the only unit useful for cyclists, possessing an easy to read screen and a 14-channel WASS receiver that will allow you to find your location up to nine feet.  Because of this, it is considered to be one of the best GPS systems today.