The floating car for sale at £500,000

As yet there is no mainstream manufacturer that sells a floating car alongside its everyday family hatchbacks and people carriers, so if you want to drive across a river without using a bridge then your options are pretty limited.

Any choice you have is restricted to one-off creations, which are either wacky bodge jobs, or ridiculously complicated, like this Dobbertin Hydrocar that is up for sale on Ebay.