Industry-side owners rate the C7 as the high point of Audi build quality to that date, which is part of why a clean, well-documented example is worth chasing. Pair that with verifying the oil-strainer recall, full service records, frequent oil history, and any Carfax damage entries before buying.
Peak-C7 build quality — buy a well-kept, recall-done car
Audi S6 (C7) · buying-advice