Having lived most my life in Africa and 10 years in Botswana I find the year round winter in the UK hard on the back of my head and ears when driving especially as I prefer to only wear a baseball cap as a sun visor. In any event my better half does not enjoy a gale around her head that much so I investigated purchasing a wind trimmer. Because of the price for a 4 seater trimmer (about £280?) I decided to make one up and test it befor I buy. I constructed a trimmer using copper tubing (15mm) and screen material from Allon White.
I even fitted a high level lCD brake light to the trimmer. The trimmer clamps into the rear side screen brackets behind the seats.
It works a treat and has become a permanent fixture. You can hear yourself think and talk at 70 miles per hour!
It may not be as elegant as the professional trimmer but it suits my 87 4/4 4 seater which incidently I have upgraded with a 1920cc cvh motor (stage one) from Specialised Engineering in london. Car now goes like a dream.
Cheers