The Audi 80 B1 was only the second modern-era Audi product to be developed entirely under Volkswagen ownership - Audi chief engineer Ludwig Kraus had famously been disparaging about the outgoing F103 series, referring to it as the "bastard", owing to its Auto Union/DKW bodyshell and Mercedes-Benz engine. The B1 was a clean break from the Auto Union era, being equipped with.a range of brand new 1.3- and 1.5-litre SOHC inline-four petrol engines - the first appearance of the now legendary "EA827" series of engines, whose descendants are still used in VW Group vehicles to the present day. The internal combustion engines were available in various rated power outputs. For the 1.3-litre engines, (identification code: ZA) was rated at , code: ZF was rated at . The 1.5-litre (codes: ZB, ZC) at for the ZB and for the ZC.