New details have trickled out of Audi’s Eagle Nest about their new superwaffen S5 test mule utilizing a super-lightweight spaceframe. It is designed to test their new lightweight construction technology which could at some point be used in street cars. Right now Audi’s highly precise engineers are flogging the living crap out of it at the Nurburgring, and they like what they’re seeing so they decided to share. Here’s the skinny: 880 lbs. (yes, eight hundred and eighty pounds!) lighter than a normal S5, and packing fewer ponies from its turbo four than a normal V8 S5 (230 vs. 354 HP), the mule is lapping the ‘Ring a full eight seconds faster than its unmodified bretheren. That should also mean more fuel economy from the lighter car with the less thirsty turbo motor, but that’s just a guess. Click through for more.
Word is that the bodywork combines aluminum and steel, draped over a spaceframe chassis made of an unknown material? Your guess is as good as ours – possibly adamantium? Of course, this all sounds suspiciously like a silhouette car to us – skin resembling a street car wrapped around a tube-frame race chassis. Audi’s engineers are now faced with the trick of making this combination beat the European and American crash tests, if they want to put this method of construction into production. Seems like 2014 is the earliest any of this would trickle down to the public. The gauntlet is thrown down, Audi. Do your worst!