The latest automotive GPS technology is priced as low as US $200 and may be not more than $1500. Moreover, they even provide voice-instructions so that you don’t have to take your eyes off the road while driving. This is called as voice-guided navigation. Other features that you can expect from a GPS system of your car are automatic routing, route-recalculating, etc.
The GPS technology has already become a default feature in some car models. However, many feel that these are a pretty costlier than the stand-alone ones. The major advantage of an in-built GPS kit is that it mingles with the design of the car. So, it looks nicer. The major disadvantage is the cost. An in-built GPS system may cost you around $1000 to $2000.
However, a stand-alone or external GPS unit can be transferred from one vehicle to another. Thus, you can lend your GPS system to your friend if he is going on a long drive.