At the Jensen Interceptor’s launch, power came from a choice of engines, the little
273 V8 and the big
383 cubic inch (6.3-liter) Mopar V-8, with an easy 325 horsepower and tire-lighting torque. The engines were coupled to a choice of four-speed, fully synchronised manual gearbox, or a a Chrysler three-speed
Torqueflite automatic. A zero to sixty sprint took a mere 7.1 seconds - an excellent time for 1966 - with a 135 mph top speed for the 383 and 120 mph for the 273.
In addition to the 360, some 440-powered Interceptors were made, and the Hemi was under experimentation (the cost to bring the
suspension up to speed, not to mention to import the practically handmade 426 Hemi, would have been prohibitive).
Jensen might have made a 440 Six Pack interceptor, the extremely rare Interceptor SP. This may have been offered in both two wheel drive and FF form, but if any SP FFs were made at all, they are not believed to have made it out of single digits. One is known to exist — it was made
after Jensen closed its doors (Dave Horton’s FF SP convertible).