The Jaguar XKE, a British marvel, underwent some quirky transformations from 1969 to 1974. The Series II ditched glass headlamp covers for a shiner look, while the Series III roared to life with a V12 engine—think of it as two XK6s in a V-shaped tango. The E Type’s evolution also meant more comfort, but alas, U.S. regulations demanded rubber bumper extensions, making it the car equivalent of a sumo suit. Fast and furious, the 1972 V12 could hit 135 mph, leaving you grinning like a Cheshire cat.