But the long and winding road to Audi’s mid-engined flagship actually began with a toe-in-the-water concept car: the Avus quattro. Having not looked at the Avus Quattro for a while, we couldn ...

Audi designers and engineers got to work. The result was the Quattro Spyder Concept. Shown at the Frankfurt Motor Show just weeks before the W12-powered Avus, the Quattro Spyder had production intent.

But the Quattro Spyder Concept inspired the Audi TT and R8 sports cars, while the W12 engine from the Avus Quattro Concept ..

Audi claims the Quattro concept weighs about 2900 pounds ... swaths of carbon fiber found throughout the cabin. The Spartan interior is driver-focused, with only a few simple controls surrounding ...

Most concept cars push the limits of what’s believable, oftentimes delivering insane features that will never make it to production. Audi’s AI:Trail Quattro ... points of an interior carpeted ...