Car Design Archives - 1975 Audi 100 C1 Part 3: the 4-directional prototype — Prototype with four-wheel directional steering — Source: Holger Merter, " Audi Raritäten - Prototypen und Autos" by Erik Eckermann,
The Audi 100 Coupé S: an overlooked style icon from the '70s
Audi 100 brochure Prospekt, 1975 (German text) | eBay
Audi 100 Coupe 1975 car price, specs, images, installment schedule, review | Wapcar.my