SVT, the 8500 is a good detector but don't believe the BS that you get 360 protection. The V1 is the ONLY detector with 2 antennae (other than the k40 custom units which have an antenaee installed in each bumper, this unit however performs extremely poorly since the antennae are so low to the ground) I have owned every detector on the market and NOTHING comes close to the Valentine 1. The ONLY honest test reports on detectorsare the road and track shootouts they have every few years. Valentine has won EVERY SHOOTOUT. The 8500 comes in a distant second. If you can't afford the V1 the 8500 is the next best choice. The V1 actually picks up cops from the rear with a separate antennae, the 8500 does not. Another GREAT feature of the V1 is the counter. You know how you go past the same store every day and your detector goes off? Well the cops know that too and will sit under the "cover" of the false signal. With the V1 you will see a 1 for 1 radar source every day you drive by. Then one day it shows 2. Guess what? A cop is hiding under the false signal. Lets see ANY DETECTOR do that!!