At last month's auto show in Detroit, Mercedes-Benz showed a vehicle called "Vision-B, " asmall but tall five-door cross between asmallstation wagon, asmall minivan and asmall SUV.
All its computers now include a built-in antenna which, in conjunction with a networking card, can exchange data with asmall base station plugged into a broadband Internet connection up to 45 metres (150 feet) away.