I have the K40 with the completely hidden laser / radar receivers. No way you would know where the radar receivers where even if I told you

Only thing possible to see are two small LEDS above the speedo telling you which sensor is sensing (front or back or both) and what it is (number of flashes etc). There is also and audiable alarm under the dash.

Two weekends ago I travelled from Gilroy to San Diego in a caravan of four lambos. One had the V1. Twice I found myself travelling next to Diablo with the V1 with one Lambo behind. The Lambo behind knew exactly what was happening when all four brake lights of our two cars came on at the exact same time. Was pretty neat.

-mick