Used 2021 Cadillac CT4 Price in the US
A used 2021 Cadillac CT4 in the US typically lists for $22,995–$27,998, with a median asking price of $25,399 across 101 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $12,900, a 2021 Luxury in Dyer, IN — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
- Typical range
- $22,995 – $27,998
- Median
- $25,399
- Cheapest 5%
- under $17,995
- Cheapest listed now
- $12,900
Browse by model year
typical price per yearCheapest 10 listed right now
ranked by price-
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$17,9502021 Cadillac CT4 Premium Luxury166,250 mi · Rogers, AR · Buy Wright Auto Sales, Inc.View listing → -
$17,9952021 Cadillac CT4 Luxury115,609 mi · Fort Worth, TX · Autos of Fort Worth LLCView listing → -
$18,5002021 Cadillac CT4 Luxury40,000 mi · Township of Northville, MI · Flagship MotorsView listing → -
These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2021 Cadillac CT4 asks $22,995–$27,998. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.
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9 pinnedFAQ
How much does a used 2021 Cadillac CT4 cost?
A used 2021 Cadillac CT4 in the US typically lists for $22,995 to $27,998, with a median asking price of $25,399 across 101 active US dealer listings. Nine in ten are priced between $17,995 and $31,990 (as of 2026-10-17, source: UnderMarket Cars).
Is $25,000 a good price for a used 2021 Cadillac CT4?
That sits at about the market median ($25,399) for a used 2021 Cadillac CT4. Under $22,995 puts you in the cheapest quarter of active US listings and under $17,995 in the cheapest 5%; above $31,990 is the priciest 5% (as of 2026-10-17).
What is the cheapest used 2021 Cadillac CT4 for sale right now?
$12,900 — a 2021 Cadillac CT4 Luxury in Dyer, IN, $12,499 under the median (as of 2026-10-17).
Are these MSRP or real asking prices?
Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.
How often are prices updated?
The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2021 Cadillac CT4 page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.
Explore more
Prices updated 2026-10-17. Data covers active dealer listings across the USA.