I've tried getting car valuations from parkers, whatcar, etc, they seem rather varied, can anyone in the industry give me a good idea of the private retail value of my car.

Spec: 2006 Honda Civic 1.8 Sport, 5 door, 57000 miles, 17" Type R look alloys, fog lamps, CD player, factory tinted windows, mp3 lead, MOT, full dealer service history, both interior and exterior in good condition, minor trolley dent on the passenger door.

I was thinking around £5500.