Motorway Drivers Risk Penalties by Exceeding 70mph Speed Limit

Driving on motorways often tempts some motorists to exceed the 70mph national speed limit. Many believe they can safely travel a few miles per hour over without facing penalties, relying on the idea that police enforce a discretionary buffer.

However, recent data challenges this assumption. A Freedom of Information request by ChooseMyCar.com to Thames Valley Police revealed that 53% of speeding offences on motorways occur between 70 and 79 mph. This highlights that many drivers are caught despite only modestly exceeding the limit.

While some motorists feel unfairly targeted for minor speeding, the law is clear: exceeding the speed limit by any amount is an offence. The notion of a “10% plus 2 mph” leeway — which would allow, for example, 77 mph in a 70 mph zone — is widely regarded as a myth. Police discretion varies, but there is no guaranteed buffer.

A spokesperson from BigWantsYourCar.com explained, “You’re liable for a fine the moment you exceed the speed limit, even by 1 mph. The idea of a guaranteed buffer simply isn’t true.”

The RAC adds, “The National Police Chiefs’ Council recommends the ‘10% plus 2’ guideline to help officers use discretion, but it is only a recommendation, not the law. Whether to issue a fine depends on the individual officer.”

Adding context, a recent survey found that 43% of Brits support raising the motorway speed limit to 80 mph. Nick Zapolski, founder of ChooseMyCar.com, believes the current limit is outdated. “Cars have improved dramatically over the last 60 years, yet the motorway speed limit remains unchanged. Our research indicates many drivers already drive beyond it and public opinion favors a review, possibly aligning with other European countries.”

In summary, motorists should exercise caution and remember that any speed exceeding 70 mph on motorways carries a risk of penalties. Assumptions about safe over-speeding margins could lead to costly consequences.