Used 2020 Cadillac CT6 Price in the US
A used 2020 Cadillac CT6 in the US typically lists for $29,399–$46,691, with a median asking price of $36,992 across 38 active US dealer listings (as of 2026-09-01). The cheapest one listed right now is $22,303, a 2020 36L Luxury in Walled Lake, MI — below 95% of the market, so expect an older model year, a base trim or high mileage.
Browse by model year
cheapest per yearCheapest 10 listed right now
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$22,3032020 Cadillac CT6 36L Luxury119,402 mi · Walled Lake, MI · LaFontaine Hyundai CommerceView listing →
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$22,9952020 Cadillac CT6 36L Luxury145,499 mi · Green Bay, WI · Village Auto on VelpView listing →
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$25,3662020 Cadillac CT6 36L Luxury110,447 mi · Joliet, IL · Your Choice Autos (Joliet)View listing →
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$27,2002020 Cadillac CT6 36L Luxury56,183 mi · Albuquerque, NM · AutoSavvy AlbuquerqueView listing →
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$27,9952020 Cadillac CT6 Luxury Csav55,308 mi · Omaha, NE · Woodhouse Ford of OmahaView listing →
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$28,5252020 Cadillac CT6 36L Luxury80,731 mi · Delray Beach, FL · Ed Morse Cadillac of DelrayView listing →
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$29,2872020 Cadillac CT6 Luxury Csav128,832 mi · Grove City, OH · Funkys AutomotiveView listing →
These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2020 Cadillac CT6 asks $29,399–$46,691. Cars this far under usually carry an older model year, a base trim or high mileage.
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10 pinnedFAQ
How much does a used 2020 Cadillac CT6 cost?
A used 2020 Cadillac CT6 in the US typically lists for $29,399 to $46,691, with a median asking price of $36,992 across 38 active US dealer listings. Nine in ten are priced between $24,657 and $64,516 (as of 2026-09-01, source: UnderMarket Cars).
Is $37,000 a good price for a used 2020 Cadillac CT6?
That sits at about the market median ($36,992) for a used 2020 Cadillac CT6. Under $29,399 puts you in the cheapest quarter of active US listings and under $24,657 in the cheapest 5%; above $64,516 is the priciest 5% (as of 2026-09-01).
What is the cheapest used 2020 Cadillac CT6 for sale right now?
$22,303 — a 2020 Cadillac CT6 36L Luxury in Walled Lake, MI, $14,689 under the median (as of 2026-09-01).
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?
UnderMarket Cars refreshes US dealer listings continuously and re-generates this used 2020 Cadillac CT6 price page at least twice a day. The data date shown on this page is 2026-09-01.
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Prices updated 2026-09-01. Data covers active dealer listings across the USA.