What To Look For
There are a variety of GPS systems for cars on the market--some are basic models, while others have extra features. You will need to decide what features you most require out of a GPS receiver for your car. Verbal directions are not always offered by the most basic units, however, for drivers, this can be an essential function, because you don't have to look at a screen while you're driving. Automatic routing is another excellent feature that most GPS models do offer. Automatic routing helps if you make a wrong turn, as it guides you back on course. You will also want to consider how easily the unit mounts to your dashboard, and whether it is easily removable. Another excellent feature is a GPS unit that has a 12 parallel channel receiver so you have less chance losing the signal. Extra features that are popular are a Bluetooth feature, which enables you to answer calls through your cell phone, and a traffic-notification feature.
Common Pitfalls
One thing to watch out for when purchasing a GPS unit is the traffic notification features, which are typically monthly subscription services. Make sure to also get a user-friendly device with a large screen and easy-to-use buttons. Play with the buttons and features in the store to see how easily you can get to the features you need. It can be frustrating to be pulled over on the side of the road, lost and unable to get your GPS to do what you want it to do. Finally, if you do plan to have your system permanently mounted to your car, carefully consider the position of the GPS on your dash. Will it block any air vents? Is it easily accessible?
Where To Buy
Regardless of where you end up purchasing your GPS unit, consider first going to a store such as Best Buy, where you are able to touch the units and assess the functions. Some online stores that typically have competitive prices for GPS receivers are Amazon, which also has a good returns policy, and Tiger GPS, which has some of the best selections of GPS units at lower prices.
Cost
An entry-level GPS model costs as little as $99. However, GPS receivers can cost as much as $600 or $700 for much fancier models that will have features such as transatlantic maps. If you want a traffic updating service, you will need to pay a subscription that can cost $50 to $60 a year, and, if your GPS receiver doesn't include an internal traffic receiver, you may need to purchase one. Also, if you want to have the maps in your GPS updated, you will have to pay a fee through the GPS manufacturer each time you update, although some companies offer lifetime updates for a one-time fee.