In 1970, Porsche were to return to the Tour de France street race with the ambitions of taking the win. They had some magnificent prototyes to choose from, but felt they should actually take a 911 – the roads were notoriously rough and therefore felt the reliable 911 would have a better chance of finishing.
The car they chose was the rare 911ST. The car went on an extreme diet prior to the race, and driver Larrousse offered them a bottle of champagne for every kg under 800kg that they could save. It ended up 780kg with 10 litres of fuel still on board…
This car is effectively a ‘prototype’ 911 due to all of the special parts. What Porsche didn’t acount for, was that the French were to resurface all of the roads prior to the race – so the Factory Matra prototpes ended ip taking first and second with this car coming third!
This film tells more of the story: