Watch this video commercial about the new Seat Ibiza Ecomotive. On April 28th in 2009 hypermiler Gerhard Plattner won his challenge against racing ledgend Hans-Joachim Stuck when he drove 835 miles from Martorell in Spain to Göttingen in Germany with only a single tank of gas (11.88 gallons). That means he manages to squeeze more than incredible 80 miles out of a gallon of diesel.