How to clear clouded headlights on a BMW Z4?

I have had responses from two garages how to clear clouded headlamps on a BMW Z4. The first offered to clean and polish the headlamps for £40 using wet and dry buffing and finish with some sort of spray finish. The second suggested using T-cut. I'm tempted to spend £40 with a specialist BMW workshop or should I try the T-cut?
I did this job a couple of weeks ago to our Honda Jazz that has to live in the Thai Sunshine. Followed my own advice and bought a bottle of Brasso from Tesco/Lotus. It did the job in 10 minutes. Can't tell you how long the treatment will last, but it will, of course, get the car through an MoT and can be repeated.
Answered by Honest John on

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