Craig Peterson (radartest.com) has a known bias against the V1. Keep that in mind. He also thinks a Dodge Magnum SRT-8 > M3 (and almost any other car) too -- that should tell you a bit about the guy. Don't just read radartest.com. Search for other sites.
Guys of lidar (http://www.guysoflidar.com/
) do not 'bait'. They sell none of the products. They don't get paid. They don't declare a winner. They do the tests under as controlled environment as possible and then just present facts. Their latest test was August 2007.
And here's another good site to get radar info and other good stuff: http://veilguy.blogspot.com/