Now, at the outset I should say that getting anal about the specifics of classic cars really isn't my thing. I can parry 1963 vs 1965 interior detailing on an E Type Jaguar with the best of them, but it doesn't float my boat. What.So.Ever. It's not that I have anything against people who do, it's just not for me. I much prefer jumping in and driving the cars.
If you're a Jensen afficionado you'll probably fall into one of two camps. One set of Jensen enthusiasts tend to favour the Mk2 because it has all the luxury and updated style of the Mk3 but with the benefit of the high compression 6.3 litre V8 engine that is supposedly more response and flexible than the later engine. Alternatively, the other camp argues that the later car looks better - mainly thanks to the wheels - and is better built. Although most Mk3s shared their dashboard design with the Mk2 the very last cars had a slightly odd walnut effect design that personally I dislike but many prefer.
So there you have it. Mk2 Jensen vs Mk3. For me it's not the same as the debate between early and late E Types, which vary considerably. If you love the Interceptor just enjoy the experience of being powered along smoothly and effortlessly by one of Britain's best GT cars.