Interestingly, almost a third (29%) wouldn’t ask their driver to slow down, suggesting many motorists are driving on unaware of their dangerous habits.

YouGov questioned 524 passengers who travel in a friend or family member’s car at least once a month, on behalf of Transport for London (TfL).

Stuart Reid, TfL’s director of the Vision Zero campaign, said: “It seems that driving at an unsafe speed has now sadly become socially acceptable and many people simply don’t think of it as a risk.”

He added: “I would urge drivers to slow down and also encourage people who feel uncomfortable with the speed they’re being driven at to speak up.”

A total of 103 people have died on London’s roads already in 2019. TfL analysis shows that speed accounts for 37% of all deaths and serious injuries.

Chief Superintendent Colin Wingrove, in charge of the Met’s Road and Transport Policing Command, said: “Excess speed is a usual factor in more than 30% of collisions.

“It takes seconds to remind a driver that they are exceeding the speed limit, and in return could save multiple lives.”

The RAC Report on Motoring 2019 found that 44% of drivers break 30 mph speed limits on a regular basis.

Nick Simmons, CEO Roadpeace, the national charity for road accident victims said: “RoadPeace would always urge passengers to speak up when they feel uncomfortable as a result of unacceptable driver behaviour and we strongly support this TfL campaign.”

For more news and information from the RAC, please visit them here.