Price: $400 at Crutchfield.com
Screen: 4.8-inch
Antenna: external
Live traffic: from Navteq; $50 a year after three-month trial
Extras: Bluetooth connectivity
Grade: DUnit DriveabilityThe larger screen is nice, but the unit takes a loooong time to compute a route. A Sony spokesman told us that software updates to fix this are in the works.
Road TestROUTE: Even if it picks the best path, what's the point if it takes so long to do it?
TRAFFIC: Decent info, but the external antenna is annoying.
Overall Sony is fairly new to the GPS market, and it shows. The best that can be said of this unit is that it has the stickiest suction cup we found for mounting.
NEXT: Navigon 7100