Liberty's legal director James Welch said vehicle owners had two choices when presented with a speeding notice - to name the driver, or to refuse to provide information - both of which carried similar penalties.
"This offends against a very important principle - namely that you should not have to incriminate yourself," he said."You should not be made subject to a criminal penalty in order to make you provide information that then forms part of the prosecution case against you."
The thing that caught my eye about this case is that the alleged offence was carried out in a 1938 Alvis.
Now that is what I call style!
My photograph is of the Alvis in question which is owned by UKIP member Idris Francis, and was used by UKIP leader Nigel Farage as a campaign car at the Bromley by-election. It has also featured in a string of TV programmes and films.