Perhaps one of the most familiar forms from Jaguar, the XJ-S was produced for more than 20 years, and it sold more than 115,000 models. While it replaces the irreverent XK-E or E-Type, it was a far cry from the earlier models’ form. The XJ-S was much larger and was still powered by a 12-cylinder engine that produced around 300hp. It is a luxury grand-tourer that can achieve 60 mph in under eight seconds and get all the way to 140 mph if given the chance on open roads or on the track. From 1977 on, Jaguar models utilized a GM Turbo-Hydramatic transmission, which made these cars great candidates for American V8 swaps and added reliability and ease of service to this already elegant package.