Appealing a Speed Camera Fine

[Andyandyhall]

I've just been sent a Speeding notice from Essex Police, it's from a fixed camera but I dont think it is correct.
My car was parked on the drive all day so something must be wrong, however the details on the notice match our car.

Any ideas what to do next, I'm struggling for proof, I was in my office that day and my wife won't drive this car because it doesn't have satnav.

Anyone know of a situation where the camera has got the wrong car?

[Andyandyhall]

Thanks for the help guys, it looks like i need a photograph to see what's what. I'll appeal and see what happens.

[Andyandyhall]

Update

On contacting the office which has administers the fines it appears that it is not a 'missread' but the photographed vehicle is a 4x4 whereas our car is a Golf so it's not us speeding.

Good news-no fine
Bad news- Our plate may have been 'cloned'

The speed enforcement office will contact Essex Police to let them know, not sure what happens now. It was lucky the other vehicle wasn't a Golf as that could've posed a major problem proving it wasn't our car. The car is a '65 plate and was registered 1st oct so the whole thing seems a bit unusual.

Thanks for the advice.