Ant and Dec's new car show is not expected to get a full series.

Ant and Dec

Ant and Dec

The presenting pair's new programme 'Street Car Showdown' - which was due to air on BBC Two, and would see two teams of contestants aim to turn second-hand motors into racing cars - has stalled following a pilot.

An insider said: "After a pilot was made in 2019 - just after the project was announced — a decision was taken not to progress it into a full series."

The 'I'm A Celebrity... Get Me Out Of Here!' co-hosts - who shot to fame as PJ and Duncan in 90s teen drama series 'Byker Grove' - were set to act as creative consultants on the BBC show.

The insider added to The Sun newspaper's TV Biz column: "This was a bit of a passion project for Ant and Dec as they’d had an interest in ‘car modders’ since they were youngsters.

"As backers of the show they would also have been returning to the Beeb, more than 30 years after they appeared on BBC One’s 'Byker Grove' and met one another.

"They couldn’t actually appear on the show due to their contractual obligations with ITV, but they were the show’s creative consultants."

Ant and Dec confirmed the "car fanatics" show in October 2019.

In a statement, the pair said at the time: "We have been fascinated with this world since we were teenagers in the North East and experienced car modders meeting up on Roker seafront in Sunderland to show off their creations.

"We came up with the format to shine a light onto the untapped world of car fanatics and highlight their passion, talent and creativity.

"We are great admirers of the team at Studio Lambert and are thrilled to be partnering with them on this project."

Studio Lambert's chief executive, Stephen Lambert, said: "We were delighted when Mitre asked us to work with them on developing Ant & Dec's fun, adrenalin-filled idea and producing it with them."