Intel PRO/Wireless Network Card 3945ABG

If you're looking to get your CarPC online, then MP3Car has a new wifi card you should take a look at.

They're selling it at an affordable price of $29.99. Here are some of the specs, and below a link to the purchase page.

Interface: Mini-PCI Express

Dimensions: 0.2 in x 1.2 in x 2 in

Data Link Protocol: IEEE 802.11b, IEEE 802.11a, IEEE 802.11g

Data Transfer Rate: 54 Mbps

System Requirements: Microsoft Windows 2000, Microsoft Windows XP Home Edition, Microsoft Windows XP Professional, Microsoft Windows XP Tablet PC Edition