2021 Cadillac CT4: trims, real prices & how to pick yours
17 builds left the factory as a 2021 CT4, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 14 main configurations sell for $12,499–$35,439 today.
- 14 main configurations
- 5,630 vehicles built
- 142 for sale right now
- $12,499–$35,439 typical price range
Which CT4 is yours?
Enter a VIN — the 17 characters on the windshield or the title — and we’ll match it to its exact factory configuration, typical price and equipment.
Works with any VIN — a different year or model takes you straight to its own page.
Pick your CT4
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Luxury · AWD 1G6DK5RK-M2L 4-cyl, Automatic, All-wheel drive. 506 built.
$19,999 great deal $24,987 typical $28,590 top of market -
Premium Luxury · AWD 1G6DF5RL-M2.7L 4-cyl, Automatic, All-wheel drive. 228 built.
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Premium Luxury Special Edition · RWD 1G6D45RK-M2L 4-cyl, Automatic, Rear-wheel drive. 37 built.
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Luxury · RWD 1G6DJ5RK-M2L 4-cyl, Automatic, Rear-wheel drive. 731 built.
$12,499 great deal $22,995 typical $28,170 top of market -
Luxury · AWD 1G6DE5RK-M2L 4-cyl, Automatic, All-wheel drive. 96 built.
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Sport · AWD 1G6DG5RK-M2L 4-cyl, Automatic, All-wheel drive. 600 built.
$20,900 great deal $26,998 typical $32,499 top of market -
Most common — 16% of 2021 CT4s
Premium Luxury · AWD 1G6DF5RK-M2L 4-cyl, Automatic, All-wheel drive. 879 built.
$18,995 great deal $26,087 typical $35,439 top of market -
Premium Luxury · RWD 1G6DB5RL-M2.7L 4-cyl, Automatic, Rear-wheel drive. 116 built.
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Luxury · RWD 1G6DA5RK-M2L 4-cyl, Automatic, Rear-wheel drive. 441 built.
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Premium Luxury Special Edition · AWD 1G6D55RK-M2L 4-cyl, Automatic, All-wheel drive. 24 built.
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V-Series · RWD 1G6DD5RL-M2.7L 4-cyl, Automatic, Rear-wheel drive. 211 built.
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V-Series · AWD 1G6DH5RL-M2.7L 4-cyl, Automatic, All-wheel drive. 347 built.
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Sport · RWD 1G6DC5RK-M
2L 4-cyl, Automatic, Rear-wheel drive. 521 built.
$18,145 great deal $25,735 typical $30,195 top of market
What actually differs
| Premium Luxury · AWD | Luxury · RWD | Sport · AWD | Sport · RWD | |
|---|---|---|---|---|
| Drivetrain | All-wheel drive | Rear-wheel drive | All-wheel drive | Rear-wheel drive |
| Typical price today | $26,087 | $22,995 | $26,998 | $25,735 |
| For sale right now | 27 | 13 | 22 | 12 |
| Vehicles built | 879 | 731 | 600 | 521 |
Same on every 2021 CT4
- Engine 2L 4-cyl
- Transmission Automatic
- Fuel Gasoline
- Body Sedan
- Seats 5
- Doors 4-door
What people actually pay
241 price observations · updated Aug 30, 2026Safety, in plain English
- ✓ Warns you before a crash
- ✓ Keeps distance on the highway (optional)
What 1G6DK5RK-M means
- 1G6
- the World Manufacturer Identifier Cadillac registered — assembled in the United States
- DK5RK
- together encode the CT4 line — Sedan, 2L 4cyl, All-wheel drive — as Cadillac filed it, these five characters are read as one block, not letter by letter
- M
- in position 10 — model year 2021
- 9, 11–17
- differ on every car: check digit, plant code and the serial number
3 rare configurations — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.
Already looking at a specific CT4?
Paste its VIN — we’ll open that exact car’s page: its configuration, market position and every listing we’ve tracked.