The unmodified Audi A6 TDI ultra chosen for the challenge comfortably exceeded its official 67mpg-plus potential by averaging a remarkable 75.9mpg and completing a total of 1,158.9 miles without the need for a fuel-stop.
UK motoring journalist Andrew Frankel and racing driver Rebecca Jackson drove the A6 TDI ultra almost non-stop for nearly 28 hours from the Netherlands to Hungary, passing through Belgium, Luxembourg, France, Switzerland, Lichtenstein, Austria, Germany, Italy, Slovenia, Croatia, Bosnia and Serbia.
Both drivers faced numerous challenges in their 28-hour driving adventure, including diversions for both heavy traffic due to an accident and a closed tunnel which led to an unplanned mountain detour.
