Well, does anyone? I had one fitted to my MkII spitfire. I took it off when I sold the car, fitted it to a series one landrover, took it off when I rebuilt that and didn't put it back, and now am thinking about fitting it to the TR3. The problem is, if you don't leave it switched on all the time (and I don't know what that would do to the electricity bill) you have to plan in advance when you are taking the car out so you can turn it on or you don't get the benefit. If you have one fitted to you