LEGO MOC Audi Quattro A1 Rally (Group 4) by JMPmodels

LEGO MOC 1985 Audi Quattro A1 - 8 Stud Wide by jameshigson0512

LEGO MOC Audi Quattro S1 by NV Carmocs

Custom LEGO Audi Sport Quattro S1 E2 instructions (MOC #135)

LEGO MOC Audi 80 Quattro Competition by Brixxbert

LEGO MOC Audi Sport Quattro S1 Rally Car by Pingubricks

LEGO MOC Audi S1 Hoonitron by KMPMOCS

1985 Audi Sport quattro S1 76897, Speed Champions

LEGO® Custom Instructions Audi Sport Quattro S1 Rally-Car 1:15 scale

Instructions for Audi Quattro Rally. RC and Static model