Real price data
What should you pay for a 2021 Cadillac CT4?
Original MSRP
$33,395
When new
Fair market price
$25,342
Mileage-adjusted
Below MSRP
$8,053
A fair used price
Where prices land
25th $23,187 · 75th $28,799 · MSRP $33,395
Spread of current 2021 Cadillac CT4 listings · 25th–75th percentile marked.
Negotiating leverage
47
out of 100
moderate leverage
~57 days of national supply and listings typically ~3% above fair price — moderate negotiating leverage.
Ridekick's negotiating-leverage score blends national Market Day Supply with how far listings sit above the mileage-adjusted fair price. Higher means more room to negotiate.
Market demand & negotiating leverage
57days of supply
Balanced marketSupply and demand are roughly balanced for the 2021 Cadillac CT4.
National Market Day Supply — how long it would take to sell the current used 2021 Cadillac CT4 inventory at the recent sales rate (lower means it sells faster). Source: MarketCheck.
Estimated dealer cost (invoice)
$30,723–$32,059
Estimated dealer invoice — about $33,395 MSRP minus a typical 4–8% manufacturer margin.
An estimate, not a sourced figure. Actual dealer invoice varies with manufacturer incentives, holdback, and regional pricing.
Fair price by trim
| Trim | Fair price | MSRP | Est. dealer cost |
|---|---|---|---|
| Luxury | $22,660 | $33,395 | $30,723–$32,059 |
| Premium Luxury | $24,934 | $39,595 | $36,427–$38,011 |
| Sport | $26,027 | $40,695 | $37,439–$39,067 |
| V-Series | $30,430 | $44,895 | $41,303–$43,099 |
- Luxury
- $22,660
- Premium Luxury
- $24,934
- Sport
- $26,027
- V-Series
- $30,430
Out-the-door price by state
Out-the-door for a 2021 Cadillac CT4 runs about $25,653 in MT to $28,048 in NJ — fair price plus state tax, title, registration, and a typical dealer doc fee.
| State | Sales/use tax | Doc + title + reg | Out-the-door |
|---|---|---|---|
| CA | $1,837 | $110+ | $27,289 |
| TX | $1,584 | $332 | $27,258 |
| FL | $1,521 | $1,074+ | $27,937 |
| NY | $1,014 | $371 | $26,727 |
| PA | $1,521 | $587 | $27,450 |
| IL | $1,584 | $683 | $27,609 |
| OH | $1,457 | $444 | $27,243 |
| GA | $1,774 | $637 | $27,753 |
| NC | $760 | $793 | $26,895 |
| WA | $1,647 | $215+ | $27,204 |
| OR | $0 | $525 | $25,867 |
Estimates using each state's base tax rate. Local (city/county) taxes can add 1–3% in many areas, dealer doc fees vary, and some states base registration on vehicle value or weight (shown with a "+"). Trade-in tax credits are not included.
Out-the-door price by state: California, Texas, Florida, New York, Pennsylvania, Illinois, Ohio, Georgia, North Carolina, Washington, Oregon
Fuel economy
21
MPG city
31
MPG highway
25
MPG combined
EPA-estimated fuel economy for a representative 2021 Cadillac CT4 configuration (Premium).
Safety & recalls
4 open NHTSA recalls on record for the 2021 Cadillac CT4.
AIR BAGS:SIDE/WINDOW:CURTAIN
General Motors, LLC. (GM) is recalling certain 2020-2022 Cadillac CT4 and CT5 vehicles. The roof rail side-curtain air bags may not have been installed correctly, which could result in an improper air bag deployment during a crash.
Remedy: Dealers will inspect both left and right-side roof rail air bags and reinstall the air bags, as necessary, free of charge. Owner notification letters were mailed on August 30, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212342780.
Campaign 21V611000 · 05/08/2021
AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT
General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.
Remedy: The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.
Campaign 21V421000 · 10/06/2021
EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Remedy: The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V-827.
Campaign 22V903000 · 08/12/2022
POWER TRAIN:AUTOMATIC TRANSMISSION
General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission. The transmission may become damaged internally and cause the wheels to lock-up.
Remedy: Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.
Campaign 25V148000 · 06/03/2025
Source: NHTSA. Contact your dealer to schedule a free recall repair.
Frequently asked questions
What is a fair price for a 2021 Cadillac CT4?
A fair, mileage-adjusted price is about $25,342, within a typical market range of $23,187 to $28,799.
Is the 2021 Cadillac CT4 cheaper than MSRP?
Yes — its original MSRP was about $33,395, so a fair used price is roughly $8,053 below MSRP.
What is the out-the-door price of a 2021 Cadillac CT4?
Out-the-door (price plus state tax, title, registration, and a typical doc fee) runs about $25,653 in MT to $28,048 in NJ, depending on your state. Local taxes can add more.
Is now a good time to buy a 2021 Cadillac CT4?
There are about 57 days of national market supply for the 2021 Cadillac CT4 — Supply and demand are roughly balanced for the 2021 Cadillac CT4.
How much can you negotiate on a 2021 Cadillac CT4?
Negotiating leverage rates 47/100 (moderate). ~57 days of national supply and listings typically ~3% above fair price — moderate negotiating leverage.
What does the dealer pay for a 2021 Cadillac CT4?
The estimated dealer cost (invoice) is roughly $30,723–$32,059 — its $33,395 MSRP minus a typical 4–8% margin. An estimate; actual invoice varies.
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Prices are computed from live market listings, adjusted for mileage, and aggregated by trim · updated 6/24/2026. Estimates only; your price depends on condition, options, and location.