2018 Cadillac ATS prices in California
The median asking price for a 2018 Cadillac ATS in California is $16,364 based on 6 active listings.
As of July 25, 2026, the median asking price for a 2018 Cadillac ATS in California is $16,364, based on 6 active dealer listings tracked by VinAssessment.
◷ Updated July 25, 2026 ▤ 6 active dealer listings, refreshed daily Methodology →
Typical: $15,253–$19,237 — the middle half of 6 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2018 Cadillac ATS
The $15,253–$19,237 typical range isn't randomness — one factor explains most of it:
Asking prices run about $18,500 at 30K–45K miles and fall to $11,694 over 105K miles — roughly $900 for every 10,000 miles.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 6 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2018 Cadillac ATS: a fair price for your mileage
A 2018 Cadillac ATS sheds roughly $900 for every 10,000 miles. Find your mileage below.
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| 30K–45K miles | 13 listings | $18,500 | $17K–$21K |
| 45K–60K miles | 20 listings | $17,997 | $17K–$20K |
| 60K–75K miles | 23 listings | $16,311 | $15K–$18K |
| 75K–90K miles | 22 listings | $15,945 | $15K–$18K |
| 90K–105K miles | 18 listings | $13,995 | $13K–$16K |
| Over 105K miles | 24 listings | $11,694 | $11K–$14K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; California prices track it closely.
Trim-level pricing isn't reliable enough for this model yet — mileage and configuration explain most of the spread above.
Price history
Median asking price by month — national · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2018 Cadillac ATS is $16,404 (July 2026) — down 6.2% from $17,490 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $16,404 | $14K–$18K | 140 |
| June 2026 | $16,272 | $14K–$18K | 153 |
| May 2026 | $16,172 | $13K–$18K | 130 |
| April 2026 | $16,490 | $14K–$19K | 135 |
| March 2026 | $16,500 | $14K–$19K | 186 |
| February 2026 | $16,584 | $14K–$19K | 154 |
| January 2026 | $15,998 | $14K–$18K | 155 |
| December 2025 | $15,999 | $14K–$19K | 144 |
| November 2025 | $15,998 | $13K–$18K | 106 |
| October 2025 | $16,344 | $14K–$18K | 94 |
| September 2025 | $16,936 | $14K–$19K | 102 |
| August 2025 | $17,490 | $15K–$19K | 74 |
2018 Cadillac ATS inventory across the U.S.
Keep exploring ATS prices
2018 Cadillac ATS · $16,914 typical · 6 listingsOther Cadillac ATS years
Live 2018 Cadillac ATS listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2017–2019 Cadillac ATS listings on VehiSales →.
More 2018 Cadillac prices
Frequently asked questions
Why do 2018 Cadillac ATS prices range from $12,308 to $21,511 in California?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $15,253 and $19,237 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2018 Cadillac ATS?
Expect roughly $900 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $2,700 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do Cadillac ATS prices in California differ from the rest of the country?
Yes. The average in California is $16,914, which is $629 above the national average of $16,285. Local supply, demand and transport costs all play a part.
How many 2018 Cadillac ATS are for sale in California right now?
6 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 6 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to remove data errors, salvage titles, and monthly-payment figures posted as if they were sale prices. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? See the factory window sticker for this ATS →
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.