Audi Sport Team Joest technical director admitted it had been a 'remarkable' performance after the all-new R15 TDi followed in the footsteps of the R8 and R10 TDi in winning its debut race.
Allan McNish, Tom Kristensen and Dindo Capello held of the challenge of Peugeot to secure victory in the Sebring Twelves Hours, while the sister car of Lucas Luhr, Mike Rockenfeller and Marco Werner also finished on the podium in third place.
The result came in a race that broke the record for highest average speed, most laps completed and further distance run, and with the R15 having completed only limited running prior to the event, Juttner admitted it was a remarkable success.
"It was incredibly hard work but also a great experience,” he said. “To finish first and third against such strong competition and with such little time of preparation and achieving a new record distance is really remarkable. We did not only have a new car here, we also had some changes in our team including a new chief mechanic for the winning car.
“It was a crazy race. The Peugeots were very fast. The game of double stints and single stints and having to fight back all the time was really nerve wrecking. I'm totally exhausted. Both crews did a fantastic job. I'm proud of the whole squad."
Head of Audi motorsport Dr Wolfgang Ullrich also paid tribute to his team and admitted it was 'little things' that had proved to be decisive in deciding the victor.
"This is a great result for a brand new car which came to Sebring with less mileage under its wheels than we had planned,” he said. “We've seen not only the fastest 12-hour race in Sebring history, but also one of the most exciting with so many lead changes and a very tight battle between Audi and Peugeot – and this in the 100th ALMS race since 1999.
“Little things have been decisive in the end. It's a shame that our second car, which was also running at the front for most of the race, lost some time at the end. I'm very happy with the debut of our new Audi R15 TDI and I would like to say a big thank you to everybody who made this success possible."