Free Unicorns!

That's an offer not an instruction.

As the party manifestos are getting launched this week, those sceptical about them will be claiming that unreasonable promises are being made and I have heard the term "Free Unicorns" used.

But Autocar today are taking a different tack on unicorns.

They list a series of motoring unicorns - cars that are very, very rare on our roads.

It made me think Vauxhall Signum - I see one of these regularly around where I live and wonder how many are still about.

But no.  Autocar go with the aesthetically- challenged Ford Scorpio, the also-strange-looking Seat Altea Freetrack and, amongst others, a car I'd forgotten about altogether, the Mercedes R-Class.

They also give a mention to the Volvo S80 V8. Any political party offering me a free one of those unicorns can definitely have my vote.

I suspect it won't be The Greens.