"When in heavy or sitting traffic it is great to see the lights climbing and plan how you are going to pull over with out damaging your alloys / cause annoyance to other drivers.
And it is great when your cruising along going singing to the radio, with very little traffic, see the lights climb, re-check your speed and adjust accordingly before going past the slip road with that sneaky traffic car sitting on the entry ramp with speed trap.The treg is smooth, its powerful and it is very easy to go too quick, this little device gives you a reminder that someone is watching you. I 100% recommend purchasing and installing one. Whilst sitting at traffic lights today I was looking around trying to find the emergency vehicle and in the picture you can just see a police car on the cross road behind the bushes. (And yes i know the traffic lights were green but we were going nowhere.)".