KNOWN

THE MARKET· OCT 28, 2026

2018 ALFA ROMEO Giulia Quadrifoglio

~$39,645

−$355 (−0.9%) past year

Sold around $40,500, asking around $38,790, as of Oct 28, 2026.

Tested on 523 sales Known had not seen: half sold within 18% of a number like this one, and 3 in 10 within 10%.

$39,645, −$355 past year

Oct 28, 2025Oct 28, 2026
the number a sale asking
Sold$40,50011 recent sales
Asking$38,79012 listed now
Spread−$1,710asks under sales by 4.2%
Last sale$46,250Sep 8, 2026
High · 1Y$53,500past year
Low · 1Y$29,500past year
Sales · 1Y9typical $45,500
In Known0cars in garages
2021 $52,517 5 sales
2022 too few 2 sales
2023 $55,250 4 sales
2024 $42,250 9 sales
2025 $35,141 12 sales
2026 so far $45,875 8 sales

Sales

9 past year· 41 on file

SoldCarMilesPrice
Sep 20262019 Alfa Romeo Giulia Quadrifoglio NRING$46,250
Aug 20268k-Mile 2020 Alfa Romeo Giulia Quadrifoglio8,000 mi$53,500
Jul 202611k-Mile 2018 Alfa Romeo Giulia Quadrifoglio11,000 mi$49,000
May 20262018 Alfa Romeo Giulia Quadrifoglio$38,750
May 20262021 Alfa Romeo Giulia Quadrifoglio$51,000
May 20262019 Alfa Romeo Giulia Quadrifoglio NRING$40,000
Apr 202642k-Mile 2017 Alfa Romeo Giulia Quadrifoglio42,000 mi$40,500
Jan 20262,300-Mile 2017 Alfa Romeo Giulia Quadrifoglio$45,500
Nov 202523k-Mile 2017 Alfa Romeo Giulia Quadrifoglio23,000 mi$29,500

Dimmed sales are older, or a close relative of this car. They are on file and not in today's number.

Asking now

12 listed, low to high

AskingYearCarMiles
$26,99520182018 Alfa Romeo Giulia Quadrifoglio117,388 mi
$27,24520182018 Alfa Romeo Giulia Quadrifoglio62,000 mi
$30,49620182018 Alfa Romeo Giulia Quadrifoglio78,850 mi
$32,39020182018 Alfa Romeo Giulia Quadrifoglio66,122 mi
$34,29420182018 Alfa Romeo Giulia Quadrifoglio65,100 mi
$37,59020182018 Alfa Romeo Giulia Quadrifoglio58,959 mi
$39,99020182018 Alfa Romeo Giulia Quadrifoglio50,188 mi
$40,99020182018 Alfa Romeo Giulia Quadrifoglio47,997 mi
$41,07220182018 Alfa Romeo Giulia Quadrifoglio48,309 mi
$41,59020182018 Alfa Romeo Giulia Quadrifoglio31,208 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.

Every car in the market