I owned a 1969 TR6 until summer of 2020, when I sold it for 20K on BAT. I bought it from the original owner, its serial # was 25124CC and was a very early example built in October 1968. I can say I put about 6K in over time to get it perfect, just about broke even at the end. The original owner bought it at the factory and brought it back to NC when his company sent him home.
It was a fun project over 4 years and I learned a lot about old English sports cars, Lucas electrics and how reliable AAA is dispatching rollback tow trucks (very reliable around here). When the TR6 was running well, it was a blast to run on back roads, but when not, it was very unreliable at times and left me at the side of the road at least 5 times. I would say it was made for a different time and place. On expressways I always felt like I was flogging it as it didn't have the overdrive option. Some guys have added Toyota 5 speed transmissions, but I didn't want to spend that much or mess up a basically original example. It had no rust anywhere and had never left the NC area, so it never tasted salted roads.
I bought it in a nostalgic mood as my late brother and I ran a green TR3A back in the early 1960's, a fun car that got me into sports cars of all makes and into 3 aircooled 911's including my current 993.
Would I ever buy another one? Not at this stage in my life, but owning one gives you a sense of what "hairy chested sports cars" are really like. One cannot in any way compare them or Healy's or MG's to any current sports car experience, they are primitive but you really know it's just you in control of a basic machine and not a bunch of computers hidden in the sheet metal with you making "inputs" to aid them in controlling the car. Anyone considering owning one should have some good, basic mechanical skills and tools and only buy a very good example. If there is any rust, expect to find more in unexpected places and that gets very expensive very fast.
This is the original owner just after buying it from the Triumph factory.