How much is my 1935 Vauxhall Grosvenor Big Six BXL worth?

I have a 1935 Vauxhall Grosvenor Big Six BXL, I have had the car for the last 10 years and I am now looking to sell it but I am unsure of the value, it is in very good condition and has always been well...

Are there special dispensations for older cars without speedometers when it comes to average speed cameras?

Cars made before 1932 do not have to have a speedometer. Are there any special dispensations for these cars when they pass through camera controlled average speed sections of road? GPS speedos have issues...