This 2004 Audi S4 sedan features a unique build, swapping its factory 4.2-liter V8 for a twin-turbocharged 2.7-liter V6 from a 2000 S4, paired with a 6-speed manual transmission and Quattro AWD. Modifications include an ETSpec Stage 2 tune, K&N intake, and XS Power downpipes, while factory equipment boasts Alcantara and leather Recaro seats and a Bose sound system. The Carfax report notes front-end damage in 2022 and rear-end damage in 2012, with other condition issues including paint cracking, yellowing headlights, and interior wear.