A Honda Civic Tourer 1.6 i-DTEC driven by two members of Honda’s European research and development team, Fergal McGrath and Julian Warren, recorded an average 100.31 mpg (2.82 l/100 km) over the 8,387-mi (13,498-km) journey. The journey began on June 1 and lasted for 25 days, taking a clockwise route through the continent before bringing the drivers back to their starting point.

McGrath and Warren's feat is reminiscent of Audi and the RAC's recent record-breaking journey through 14 countries in Europe on a single tank of fuel. Unlike that achievement, however, the drivers refueled nine times, averaging 932 mi (1,500 km) between each fresh tank.

Honda explains that the challenge was aimed at demonstrating the real-world fuel economy of the Tourer. Under the rules of the record attempt, the car had to be a standard model in every respect and fueling was carried out at regular filling stations.

The car's tire pressures and wheel alignment were optimized, however, and McGrath and Warren took steps to ensure their driving was efficient, including accelerating and braking smoothly, anticipating road conditions ahead, carrying no unnecessary weight and ensuring the vehicle was well maintained.