Hypermiling Couple Sets World Record With 90 MPG Drive Around Australian CoastMark Arnold5/28/08 9:20amFiled to: Offbeat NewsAlternative EnergyDieselFuel EconomyPeugeot 308Peugeot 308 HDiPeugeot 308 HDi 110AustraliahypermilingPeugeotWorld Record36EditPromoteShare to KinjaToggle Conversation toolsGo to permalinkRemember when we drove a European-spec Honda Civic 2.2 i-CTDi on a 100-mile road trip? We did pretty well, averaging 72 MPG. While we were throughly impressed, it was nothing compared to earning two spots in the Guinness Book Of World Records. Helen and John Taylor, a British couple, earned their two spots of fame in the record book of record books while Down Under in their little Peugeot 308 HDi. The first record was for "longest distance on a single tank," set by traveling 1192 miles on just 60 liters of diesel fuel — just 15.8 gallons. The other record, "highest mileage for a journey," was set by completing 9,062 miles at an average of 90.75 MPG. So how did they do it? What magical modifications were made?