Taxis are not glamorous. They're temporary and transitory, the mobile equivalent of a phone booth: meant for quick use and quick turnaround by lots and lots of people. But with Central Car Service, being driven around town can be damn near classy, thanks to a fleet of newer Cadillacs outfitted with lush interiors and functional air-conditioning and stereo systems. They'll still pick you up at a dirty dive bar and take you through the Taco Bell drive-thru at 2 a.m., but you'll look good doing it.