MOTORWAY speeds could be cut to a sluggish 55mph under barmy plans being considered by the Greens.

Party chief yesterday repeatedly refused to rule it out – simply arguing it has not been in their manifesto.

Zack Polanski speaking at the Green Party Big Day Out election campaign.Zack Polanski has refused to rule out cutting motorway speeds to 55mph Credit: Getty

The idea stems from long-standing party policies backed by members, which are now under review as try to clean up their platform.

also left the door open to a potential coalition with Labour under or .

Asked by about the speed limits, Mr Polanski said: “That’s not been in the manifesto and in ten days’ time we’ve got local elections and unsurprisingly, speed limits are not on the ballot.”

But when asked if it was ever policy, he dodged again, saying: “Well, there’s a difference, as I’m saying, between what the members vote on and then also what we have in a local election, and speed limits are not in a local election.

Pressed again, he added: “The important point is that, what the members have decided already in the document says this will be reviewed and updated.”

On a coalition with , told Sky News it was “almost impossible to know” without seeing their platform, but admitted they are “much closer to my politics” than Sir Keir Starmer.

He added it would be a “significant improvement” if moved in a more “progressive direction”.

Earlier this month we reported that the .

His “cranky” call to abolish the £4billion industry comes as he seeks to — plus slap a tax on dog owners.

The party also wants to scrap the nuclear deterrent, ban zoos and drop the as the nation’s established church.