2018 CT6
20T RWD
2L 4-cyl · Gasoline · Rear-wheel drive · Automatic 1 pattern · View specs
1G6KA5RX-J →
207 VINs in our data
Sedan · 5 seats
$19,998 median asking price
7 price observations · Updated Oct 25, 2026
THE SPECS GUIDE
2018 Cadillac CT6
Find your trim. See what changes.
Compare recorded engines, drivetrains and specifications, then open the VIN pattern that matches your car.
Have a specific car in mind?
Use its full VIN to look up the vehicle and check the recorded specifications.
SIDE BY SIDE
Compare the details
Choose up to three VIN patterns. Each column describes one recorded pattern.
Swipe the table sideways to compare vehicles. Specification names stay visible.
| Specification | Luxury · AWD 1G6KD5RS-J | 36L AWD 1G6KB5RS-J | Premium Luxury (Csav) · AWD 1G6KG5RS-J | Luxury · AWD 1G6KE5R6-J | Luxury · AWD 1G6KD5SR-J | Premium Luxury (Csav) · AWD 1G6KJ5R6-J | Premium Luxury · AWD 1G6KF5RS-J | Platinum (Csav) · AWD 1G6KM5RS-J | Luxury · RWD 1G6KC5RX-J | Platinum (Csav) · AWD 1G6KP5R6-J | Premium Luxury · Plug-in hybrid · RWD LREKK5RX-J | Platinum · AWD 1G6KN5R6-J | Platinum · AWD 1G6KL5RS-J | 20T RWD 1G6KA5RX-J | Premium Luxury · AWD 1G6KH5R6-J |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Engine | 3.6L 6-cyl | 3.6L 6-cyl | 3.6L 6-cyl | 3L 6-cyl | Not recorded | 3L 6-cyl | 3.6L 6-cyl | 3.6L 6-cyl | 2L 4-cyl | 3L 6-cyl | 2L 4-cyl | 3L 6-cyl | 3.6L 6-cyl | 2L 4-cyl | 3L 6-cyl |
| Electrification | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Plug-in hybrid | Not recorded | Not recorded | Not recorded | Not recorded |
| Drivetrain | All-wheel drive | All-wheel drive | All-wheel drive | All-wheel drive | All-wheel drive | All-wheel drive | All-wheel drive | All-wheel drive | Rear-wheel drive | All-wheel drive | Rear-wheel drive | All-wheel drive | All-wheel drive | Rear-wheel drive | All-wheel drive |
| Transmission | Automatic | Automatic | Automatic | Automatic | Not recorded | Automatic | Automatic | Automatic | Automatic | Automatic | Not recorded | Automatic | Automatic | Automatic | Automatic |
| Fuel | Gasoline | Gasoline | Gasoline | Gasoline | Not recorded | Gasoline | Gasoline | Gasoline | Gasoline | Gasoline | Electric | Gasoline | Gasoline | Gasoline | Gasoline |
| Body | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan | Sedan |
| Seats | 5 | 5 | 5 | 5 | Not recorded | 5 | 5 | 5 | 5 | 5 | Not recorded | 5 | 5 | 5 | 5 |
| Doors | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door | 4-door |
| Median asking price | $21,129 | $22,298 | $27,155 | Not recorded | Not recorded | $24,437 | $22,990 | Not recorded | $17,989 | $28,408 | Not recorded | $25,987 | Not recorded | $19,998 | $25,995 |
| Price observations | 76 | 18 | 29 | Not recorded | Not recorded | 9 | 10 | Not recorded | 11 | 11 | Not recorded | 10 | Not recorded | 7 | 5 |
| Price sample updated | Oct 25, 2026 | Oct 25, 2026 | Oct 25, 2026 | Not recorded | Not recorded | Oct 25, 2026 | Oct 25, 2026 | Not recorded | Oct 25, 2026 | Oct 25, 2026 | Not recorded | Oct 25, 2026 | Not recorded | Oct 25, 2026 | Oct 25, 2026 |
Missing data does not mean a feature is absent. Prices are advertised asking prices for each pattern’s own sample, not completed sale prices or a trim-wide average.
EXPLORE THE LINEUP
Find your CT6
Grouped by recorded trim, with engine and drive variants underneath. Open a variant to see every source pattern.
2018 CT6
36L AWD
3.6L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KB5RS-J →
564 VINs in our data
Sedan · 5 seats
$22,298 median asking price
18 price observations · Updated Oct 25, 2026
2018 CT6
Luxury
2L 4-cyl · Gasoline · Rear-wheel drive · Automatic 1 pattern · View specs
1G6KC5RX-J →
269 VINs in our data
Sedan · 5 seats
$17,989 median asking price
11 price observations · Updated Oct 25, 2026
3.6L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KD5RS-J →
1,872 VINs in our data
Sedan · 5 seats
$21,129 median asking price
76 price observations · Updated Oct 25, 2026
3L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KE5R6-J →
160 VINs in our data
Sedan · 5 seats
No qualifying asking-price sample for this pattern.
Engine not recorded · All-wheel drive 1 pattern · View specs
1G6KD5SR-J →
1 VINs in our data
Sedan
No qualifying asking-price sample for this pattern.
Limited record — some specifications may be missing.
2018 CT6
Platinum
3.6L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KL5RS-J →
26 VINs in our data
Sedan · 5 seats
No qualifying asking-price sample for this pattern.
3L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KN5R6-J →
161 VINs in our data
Sedan · 5 seats
$25,987 median asking price
10 price observations · Updated Oct 25, 2026
2018 CT6
Platinum (Csav)
3.6L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KM5RS-J →
88 VINs in our data
Sedan · 5 seats
No qualifying asking-price sample for this pattern.
3L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KP5R6-J →
433 VINs in our data
Sedan · 5 seats
$28,408 median asking price
11 price observations · Updated Oct 25, 2026
2018 CT6
Premium Luxury
2L 4-cyl · Plug-in hybrid · Rear-wheel drive 1 pattern · View specs
3.6L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KF5RS-J →
365 VINs in our data
Sedan · 5 seats
$22,990 median asking price
10 price observations · Updated Oct 25, 2026
3L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KH5R6-J →
161 VINs in our data
Sedan · 5 seats
$25,995 median asking price
5 price observations · Updated Oct 25, 2026
2018 CT6
Premium Luxury (Csav)
3.6L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KG5RS-J →
531 VINs in our data
Sedan · 5 seats
$27,155 median asking price
29 price observations · Updated Oct 25, 2026
3L 6-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
1G6KJ5R6-J →
294 VINs in our data
Sedan · 5 seats
$24,437 median asking price
9 price observations · Updated Oct 25, 2026
Source: manufacturer specifications decoded through NHTSA vPIC, alongside VIN and listing records in our dataset. Trim groups are for browsing; shared labels do not establish identical equipment. Confirm options on the specific vehicle.
THE MARKET VIEW
What are 2018 CT6s listed for?
Explore model-year asking prices and available market history.
BEFORE YOU CHOOSE
Go beyond the spec sheet
Equipment, fuel economy and safety results can vary with the vehicle’s engine, drivetrain and options.
Safety & recalls
Check the tested body style and drivetrain before comparing crash ratings.
Check NHTSA ratings → Check recalls by VIN →Fuel economy
Match the engine and drivetrain to an EPA entry. A model-year fuel estimate may describe a different variant from yours.
Find the matching EPA vehicle →Prices across model years
Compare current asking-price samples. Differences between model years are not a forecast of how one car will depreciate.
Asking-price history →