Production of the Cadillac CT4 ended at GM's Lansing Grand River plant in June 2026. No replacement has been announced. The last compact luxury sedan from an American automaker is now a used-only proposition, and 939 used examples are on the market right now.
That timing matters because the BMW 3-Series, Mercedes-Benz C-Class, and Audi A4 — the CT4's three closest competitors — all arrive from Europe. Since the 25% EU auto tariff took effect in May 2026, new European compact sedans are running $5,000 to $8,900 more than a year ago, per Edmunds. Used European examples are getting pulled up with them. The CT4 was built in Michigan. It doesn't carry that tariff exposure.
Market data for this generation: 2020 | 2021 | 2022 | 2023 | 2024 | 2025
Prices by Model Year
CarScout data as of June 14, 2026:
| Year | Used Listings | Starting Price | Median Mileage |
|---|---|---|---|
| 2020 | 75 | $12,420 | 62,209 |
| 2021 | 108 | $14,403 | 52,083 |
| 2022 | 110 | $19,497 | 36,667 |
| 2023 | 269 | $21,000 | 30,293 |
| 2024 | 182 | $24,999 | 26,453 |
| 2025 | 332 | $27,200 | 25,000 |
The 2023 is the volume year: 269 listings, median mileage around 30,000. That's a 3-year-old car at well below what a new one costs. A new 2026 CT4 launched at $37,795, and now that production is over, the used market is the only market.
225 certified pre-owned CT4s are also listed. CPO pricing runs higher, but it comes with extended coverage and a dealer inspection.
What You're Buying
The CT4 launched for 2020 as the entry-level car in Cadillac's sedan lineup, slotted below the larger CT5. It rides on GM's Alpha 2 platform — rear-wheel drive standard, AWD available across most trims — with a 2.0L or 2.7L turbocharged four-cylinder, or a twin-turbo 3.6L V6 in the V Blackwing.
The full generation ran from 2020 through 2026 with no significant mid-cycle refresh, which means buying a 2023 gets you essentially the same car as a 2020, minus some software updates. The bigger distinctions are trim-level and model-year reliability.
Trims
Luxury and Premium Luxury are the base trims, both running a 2.0L 4-cylinder turbo making 237 horsepower. Premium Luxury adds heated and ventilated front seats, a head-up display, and wireless charging. EPA fuel economy on the 2.0T is 23 city / 34 highway / 27 combined — the most efficient CT4 you can buy. These two trims represent the best value in the used market.
Sport uses the same 2.0T engine but with sport-tuned suspension, larger wheels, and a more aggressive exterior look. The suspension calibration is genuinely stiffer and more responsive. It's not a performance upgrade, but the chassis feel is meaningfully different from Premium Luxury.
CT4-V runs the 2.7L turbocharged 4-cylinder (325 horsepower), with Brembo brakes, magnetic ride control, and better chassis tuning than any non-V trim. This is the one to buy if you want a sedan that actually handles. EPA says 21/29/23 on the RWD version.
CT4-V Blackwing is a different category entirely. A twin-turbo 3.6L V6 making 472 horsepower, a six-speed manual transmission available, Michelin Pilot Sport 4S tires standard. These are enthusiast cars, priced like it. Used Blackwings start around $31,500 and go significantly higher for clean low-mileage examples.
Years to Buy and Years to Skip
Skip 2020. The first model year has the most complaints on record per CarComplaints. The main issues: exterior lighting failures, airbag deployment faults, brake sensor errors, and electrical gremlins. More critically, GM issued a recall covering 2020-2021 CT4s with the 10-speed automatic transmission — internal damage that could cause the wheels to lock up unexpectedly. Any 2020 you consider should have documentation confirming this recall was completed.
Be cautious with 2021. The 10-speed transmission recall also covers 2021. Pull the NHTSA recall status on any VIN before making an offer. If the recall work is done and documented, the 2021 is fine. If not, walk.
The 2022 sits in the middle. There are reported issues with mass airflow sensors and fuel system components on some 2022s, and the airbag recall covered 2020-2022 (roof rail side-curtain airbags not properly installed). Consumer Reports scores are acceptable. With 110 listings at a median of 36,000 miles, prices are competitive — but run the recall history first.
Buy 2023. Consumer Reports rated this model year strongly. Complaint volume is low, and the main recurring issue in owner reports is exterior lighting. There's more supply than any other used year (269 listings) at around 30,000 miles median, which gives you real negotiating leverage. The 2023 also benefits from software improvements made in earlier years without introducing new problems.
2024 and 2025 are the freshest and most expensive used options. If you want under 30,000 miles and are comfortable with near-new pricing ($25K-$40K), these years make sense. The 2025 is nearly indistinguishable from new.
What to Check Before You Buy
Run any CT4 VIN through NHTSA before you negotiate. The 2020-2021 10-speed transmission recall and the 2020-2022 airbag recall are the two critical items to confirm closed.
All CT4s require premium fuel. The 2.0T is the most efficient (27 combined), but premium still adds a few hundred dollars a year over regular. Budget for it.
For V Blackwing specifically, ask about track use. These cars attract enthusiasts who drive them hard, and a pre-purchase inspection from an independent shop that knows Cadillac performance vehicles is worth the cost.
CPO pricing on 2022-2023 models carries a premium over private listings, but for a generation with known electrical and sensor history, the extended coverage is reasonable value.
Does the CT4 discontinuation affect parts availability? No. GM is required to support parts for discontinued vehicles for years after production ends. CT4 parts will remain available through dealers and the aftermarket for the foreseeable future. The discontinuation is a production decision, not a support decision.
Which used CT4 year has the most reliability complaints? The 2020 model year has the most documented complaints and the highest recall exposure, per CarComplaints and NHTSA data. The 2023 is the cleanest year in the generation.
How does a used CT4 compare to a used BMW 3-Series or Mercedes C-Class right now? New 3-Series and C-Class prices are up $5,000 to $8,900 due to the EU tariff, per Edmunds, which is lifting used prices on those models too. A 2022 CT4 Premium Luxury in the $20K to $22K range competes with same-age 3-Series (G20) and C-Class (W206) examples that now typically list higher. The CT4 isn't built in Europe. That gap is real.
CarScout tracks CT4 listings across all 50 states, updated daily. Set a price or mileage alert on any year and trim at usecarscout.com and you'll know when the right one hits the market.