With the major uproar of cell phone use in your automobile, I don't think these will go far. The use of a computer in a car would only be safe for limos. This however has a great amount of power for a smaller tablet PC. Specs below:

1,4 GHz Pentium M
40 GB HDD
256 MB RAM
8,4" TFT-Display (800 x 600 dpi) with EMV standard
78 keys with Silikonkeys and light
antishock case
Li-Ion Akku with 4 hours cap. (changeable)
2 x USB
VGA
Microphone
Security Panel
Optical Trackball
integrated speakers
Windows XP Professional
CarTablet PC bag,
Dim.: 460 (B) x 180 (T) x 56 (H) mm