Thanks John and yes it would be. The problem with front sensors is what power feed you use

. If on with ignition they would bleep away in every traffic queue. Good deterrent for tail gaiters though

Sioux's got front and rear parking sensors on her car, the front are not too sensitive to stationery traffic in queues, you have to be pretty close to trigger them compared to the back sensors which seem to have a greater range. Even if they are attached to the ignition you could still put a switch in place to determine when you want them on.