Thousands of motorists across Europe and Asia helped Shell set a new world record for the "largest fuel efficiency lesson" at the weekend.
Nine cities staged simultaneous training sessions in which motorists were able to learn how to save fuel and cut their driving costs.
A total of 3,243 people participated in the lessons which took place in the UK, Denmark, Turkey, Philippines, Thailand, Hong Kong, Netherlands, Germany and Malaysia.
The largest turnout came in Malaysia, where 1,225 participants were in attendance at the 1Utama shopping centre in Selangor.
In Valkenburg, Shell worked with the classic VW Beetle owners club to given them information about how they could make their classic cars run more efficiently.
After the lesson the Beetle owners then went on a driving challenge around the local area to put what they'd learnt to the test and see who could drive in the most fuel efficient way.
Over 200 drivers took part in UK leg of the attempt which was held near Tower Bridge in London and was hosted by TV motoring expert Quentin Willson and TV presenter Konnie Huq.
Amarilis Whitty, Guinness World Records adjudicator, said of the achievement: "As world record attempts go, this is one of the most informative I've witnessed.
"Now more than ever, it's a hugely important topic for families and motorists across the world. I can now confirm that 204 people in the UK were present and attentive for the full 30-minute lesson on fuel saving."
