Market retention
Cadillac CT4 depreciation after 6 years.
A 2020 Cadillac CT4 is currently worth about $23,079—54% of the newest year's market value.
Observed value after 6 years
$23,079
46% below the newest year's price in this study.
Newest market year
2026
Fair price $42,846
Observed value after 6 years
$23,079
46% below the newest year's price
Value retained
54%
Of the newest year's price
Observed market data
Value retention by model year.
Each bar compares a year's current fair price with the newest Cadillac CT4 in this study.
2026
Newest year
$42,846 100%2025
1 years old
$37,033 86%2024
2 years old
$32,559 76%2023
3 years old
$31,196 73%2022
4 years old
$33,863 79%2021
5 years old
$25,474 59%2020
6 years old
$23,079 54%
Need the numbers behind this chart? Download the observed data and methodology (JSON).
How to read this
This study compares similarly adjusted listings from different model years today. It shows the shape of today's market—not a guarantee about a specific vehicle's future value.
Long-term estimate
12-year value outlook.
Observed rows use current listings. Later rows extend the measured annual decline and are clearly marked as projected.
| Age (yrs) | Model year | Est. miles | Resale value | Retention | Basis |
|---|---|---|---|---|---|
| 0 | 2026 | 0 | $42,846 | 100% | Market |
| 1 | 2025 | 12,000 | $37,033 | 86% | Market |
| 2 | 2024 | 24,000 | $32,559 | 76% | Market |
| 3 | 2023 | 36,000 | $31,196 | 73% | Market |
| 4 | 2022 | 48,000 | $33,863 | 79% | Market |
| 5 | 2021 | 60,000 | $25,474 | 59% | Market |
| 6 | 2020 | 72,000 | $23,079 | 54% | Market |
| 7 | 2019 | 84,000 | $22,564 | 53% | Projected |
| 8 | 2018 | 96,000 | $20,588 | 48% | Projected |
| 9 | 2017 | 108,000 | $18,786 | 44% | Projected |
| 10 | 2016 | 120,000 | $17,142 | 40% | Projected |
| 11 | 2015 | 132,000 | $15,641 | 37% | Projected |
Mileage assumes ~12,000 mi/yr. Projected values use the fitted depreciation rate and are floored at 15% of the newest year's value; they are estimates, not guarantees.
Common questions
Cadillac CT4 depreciation FAQ.
How fast does the Cadillac CT4 depreciate?
About 8.8% per year, based on a comparison of mileage-adjusted market prices across model years.
What is a Cadillac CT4 worth after 6 years?
A 2020 Cadillac CT4 is worth roughly $23,079—about 54% of the newest year's fair price.
What will a Cadillac CT4 be worth at 11 years old?
Projecting the 8.8%-per-year rate forward, a 11-year-old Cadillac CT4 (around 132,000 miles) would be worth about $15,641—roughly 37% of the newest year's value. A projection, not a guarantee.
Cross-sectional depreciation estimate from live market listings, adjusted for mileage · updated 8/5/2026. Estimates only; your car's value depends on condition, options, and location.