OK guys, I'm seriously thinking of buying the blinder M40 for my Mercedes SLK55 AMG (small car, black). I did read the reviews and test, however, I have not found an easy way to buy Antilaser, LPP, or Laser Interceptor, so it seems like Blinder is the only option I have (other than escort shifter, which showed poor performance in recent test). According to the performance tests, blinder M40 did fairly well, even better than LPP in the recent LIDAR test. Yet, it seems the consensus on this forum is that LPP/AntiLaser are better than Blinder M40. There are many people on this forum that claim that M40 did not work for them.
BTW I'm from Miami, FL. Looks like the common lasers here are Lasar Atlanta, Pro Laser 3, LTI Ultralite, Stalker LZ-1, etc. Out of all of these, M40 did not do so well against LZ-1, but beat all other guns. M40 did well against Laser Atlanta, the most common laser in FL according to Sethy
P.S. Cheapest M40 I found was 500$ from banoggle, so its also fairly priced in comparison to the competition.