Three years and 4.4mil­lion kilo­me­tres in the­mak­ing

911 Porsche World - - News And Views -

Be­hold the shiny new Cayenne. But what, ex­actly, does it take to bring such an in­cred­i­bly com­plex new car to mar­ket? 4.4 mil­lion kilo­me­tres of test­ing miles con­ducted in tem­per­a­tures from mi­nus 45 de­grees centi­grade right up to fully 50 de­grees of bak­ing heat, for starters.

To sim­u­late the most ex­treme stresses pos­si­ble, pro­to­types are tested all over the world, from race tracks like the Nür­bur­gring to the sand dunes of Dubai, the dusty slopes of Death Val­ley in the USA, the frozen waste­lands of Alaska and the stop-start tor­ture of traf­fic in China's big­gest cities. Porsche says in­di­vid­ual pro­to­types are tested so ex­haus­tively, they can rack up a quar­ter of a mil­lion kilo­me­tres in just a few months.

Porsche reck­ons these test­ing con­di­tions, which also in­clude hy­draulic rigs that give the en­tire car a bru­tal bat­ter­ing, are far tougher than the ve­hi­cles are likely to ex­pe­ri­ence when owned by cus­tomers. Use­ful to know as you cruise the leafy lanes of the home coun­ties or poo­tle through west Lon­don...

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