How about performance, is the TR6 faster, say 0-60, and top speed. I had two TR250,s back in the day. Great fun, almost too much fun. I wrapped one completely around a tree. Smashed that nice wood dash into three pieces and the fireman who were almost as drunk as me had a time sawing me out of that thing. I had seen them playing with their new extraction saw earlier that week. I can remember them asking if they thought my leg was going to get cut. The car held up very well and I only came out with a broken leg and a little more common sense at 17 years old. I loved those cars, they were the 1968 predecessor to the TR6, a TR4AIRS car with the 6cyl carb engine, probably rare now. But, with my 230SL it would be hard to go back to that British wiring system. The Brits never made the transition from horse harnesses to wiring harnesses very well.