Used Cadillac CT6 Price in the US
A used Cadillac CT6 in the US typically lists for $17,218–$28,392, with a median asking price of $21,118 across 483 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $7,600, a 2017 Premium Luxury Phev in Raymond, NH — below 95% of the market, so expect an older model year, high mileage or a branded title — check the vehicle history.
- Typical range
- $17,218 – $28,392
- Median
- $21,118
- Cheapest 5%
- under $13,525
- Cheapest listed now
- $7,600
Browse by model year
typical price per yearCheapest 10 listed right now
ranked by price-
$7,6002017 Cadillac CT6 Premium Luxury Phev66,285 mi · Raymond, NH · argocycles.comView listing → -
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$10,9952017 Cadillac CT6 Luxury128,913 mi · Naugatuck, CT · Preowned Auto Wholesalers LLCView listing →
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$11,0502017 Cadillac CT6 Premium Luxury141,844 mi · Chantilly, VA · Epic Motor Company LLCView listing →
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These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used Cadillac CT6 asks $17,218–$28,392. Cars this far under: expect an older model year, high mileage or a branded title — check the vehicle history.
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9 pinnedFAQ
How much does a used Cadillac CT6 cost?
A used Cadillac CT6 in the US typically lists for $17,218 to $28,392, with a median asking price of $21,118 across 483 active US dealer listings. Nine in ten are priced between $13,525 and $41,985 (as of 2026-10-17, source: UnderMarket Cars).
Is $21,000 a good price for a used Cadillac CT6?
That sits at about the market median ($21,118) for a used Cadillac CT6. Under $17,218 puts you in the cheapest quarter of active US listings and under $13,525 in the cheapest 5%; above $41,985 is the priciest 5% (as of 2026-10-17).
What is the cheapest used Cadillac CT6 for sale right now?
$7,600 — a 2017 Cadillac CT6 Premium Luxury Phev in Raymond, NH, $13,518 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 Cadillac CT6 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.