Porsche says the test vehicles were moving between climate zones with temperature differences of up to 85 degrees Celsius, as well as "sprinting across elevation changes spanning more than four kilometres".
As Porsche explains, the testing first focuses on core aspects of the auto - the engine and chassis - both of which have been improved from outgoing 991-generation cars. The new driver assistance systems and extended connectivity must also rise to the challenges of the strenuous testing marathon: Porsche Connect differs from country to country, so testing its operation and functions is very resource-intensive. They have also endured traffic jams in major cities (including San Francisco, Arizona, and Munich) and also have been tested on the race tracks (which we presume to be the Nurburgring). Interior components must not expand or contract and make noises when exposed to extreme heat.
On the other hand, the cold start, heating and air conditioning, traction, handling and braking behaviour were tested in minus 35 degrees of Finland and the European Arctic Circle. Endurance runs saw the new 911 test cars on China's roads for typical traffic situations where different fuel quality was also used. In total, the cars have driven around three million kilometres, at altitudes as low as 90 m below sea level and up to 4,300 metres on Mount Evans, Colarado (biturbo and fuel system testing). Porsche says the test cars will have completed a total test run of 3 million kilometers when they have served their objective, and part of that is, of course, testing at the legendary Nürburgring, where many 911 customers will undoubtedly take their new pride and joy.