Another overweight vehicle was spotted crossing Marlow Bridge last week – but it is not quite what you might expect.

Eagle-eyed Marlow residents may have spotted Thunderbirds star Lady Penelope being driven across the town’s iconic bridge by chauffeur Parker in her distinctive FAB 1 car in a new Halifax TV advert.

While the banking advert has brought delight to many viewers, some were quick to point out that the pink six-wheeled car would likely have been too heavy to cross the weight-restricted bridge.

Use of the Grade I listed bridge is restricted to vehicles under three tonnes maximum gross weight (MGW) and less that 6ft 6ins wide - however, the FAB 1 is thought to be just over three tonnes and eight feet wide.

Paul Merchant, behind the community website MyMarlow.co.uk, took to Twitter to say: “Wikipedia states that the FAB1 car is 3 imperial tons... which is 3.048 tonnes - definitely overweight for the bridge.”

He added: “Marlow features prominently in the new Halifax TV advert featuring the Thunderbirds. Although they drive away from town over the bridge in a probably overweight car, then are suddenly driving past Bills arriving at the bank? Still though… all good fun.”