Honda wants to set a new Guinness record for the lowest fuel consumption with a production car during an 8,500-mile (13,500km) trip across 24 European countries, according to AOL Cars UK.
On June 1st, two members of Honda Europe's R&D team will set out to drive 370 miles (595 km) in 7.5 hours a day for 25 straight days. They'll be using a production-spec, unmodified Honda Civic Tourer with a 1.6L diesel engine.
You can follow their progress at www.tracker.co.uk.