The sporty SUV combines the space and comfort of a typical luxury car with a range suitable for everyday use. Until the start of series production at the end of 2018, almost 250 development vehicles will complete testing under extreme conditions worldwide. Audi is currently testing the pre-series vehicles for customer-focused operation in all climate zones ranging from below -20 to above +50 degrees Celsius (-4° to +122° F). In addition, intensive tests of the charging technology are being conducted worldwide – an important safeguarding criterion for battery-electric models. The individual charging standards are tested on proving grounds and in public areas to validate the full range of different charging options. In total, just under 250 Audi e-tron prototypes are used in the tests. They will cover more than five million kilometers (3,106,856 mi) – roughly equivalent to 125 times around the earth and 85,000 hours on the road.