THE MARKET· OCT 28, 2026
2021 AUDI RS 6
~$89,335
+$0 (+0.0%) past year· few sales
What sellers are asking, 42 listed now, as of Oct 28, 2026.
Tested on 921 listings Known had not seen: half asked within 9% of a number like this one, and 8 in 10 within 20%.
$89,335, +$0 past year
Asking now
42 listed, low to high
| Asking | Year | Car | Miles | ||
|---|---|---|---|---|---|
 | $71,194 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 87,619 mi | |
 | $72,798 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 82,340 mi | |
 | $76,794 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 60,999 mi | |
 | $78,200 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 41,829 mi | |
 | $80,575 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 58,028 mi | |
 | $81,293 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 61,446 mi | |
 | $81,999 | 2021 | 2021 Audi RS6 4.2 | 60,340 mi | |
 | $82,595 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 54,959 mi | |
 | $82,911 | 2021 | 2021 Audi RS 6 Avant 4.0T | 55,295 mi | |
 | $83,223 | 2021 | 2021 Audi RS 6 Avant 4.0T quattro | 64,660 mi |
How this number is made
Real sales and real asking prices from many sources, auction results and dealer and private listings, matched to this car by year, trim and body. Sales are one side of the market, what buyers paid; asks are the other, what sellers want now. When both sides stand on enough evidence the number is the mid between them, the way a market quotes itself. When one side is thin the other leads, and it says so. Sales from the car's own model year count first, older years only when its own year is thin, never another generation. Too few sales means no number. The line is what the number was each week, from every sale on file, and it ends at today's.
Known tests its own numbers. It hides each recent sale and listing in turn, prices that car from the rest of the market as it stood, and compares the result with the real price. The line under the number above is what that test found for numbers like this one.