Edmunds InsideLine got to ride shotgun in the 2009 Cadillac CTS-V around GM's Michigan proving grounds. With its near-silent Eaton TVS supercharger and incredible exhaust note, the CTS-V rocketed from 0-60 mph in 3.9 seconds. Available with a Tremec 6-speed manual, the CTS-V can reach a top speed of 191 mph (the CTS-V is limited to 175 when equipped with the 6-speed automatic).