Re: Well I personally think it is a good idea....
> France being a far more socialist country than the UK.
France has never been socialist, unless you count a few months in Paris in 1871. All the presidents since at least Mitterand have been either explicitly or implicitly right-wing.
> In France the autoroute network is privately managed under 30-year concessions,
This is a fairly recent privatisation, the autoroute companies were originally sate-owned.