2018 Cadillac CT6: trims, real prices & how to pick yours

15 builds left the factory as a 2018 CT6, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 14 main configurations sell for $10,199–$38,977 today.

  • 14 main configurations
  • 5,187 vehicles built
  • 96 for sale right now
  • $10,199–$38,977 typical price range

Which CT6 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 CT6

What actually differs

Luxury · AWD 36L AWD Premium Luxury (Csav) · AWD Platinum (Csav) · AWD
Engine 3.6L 6-cyl 3.6L 6-cyl 3.6L 6-cyl 3L 6-cyl
Typical price today $21,995 $19,800 $25,966 $29,921
For sale right now 33 8 14 11
Vehicles built 1,853 562 523 430
Same on every 2018 CT6
  • Drivetrain All-wheel drive
  • Transmission Automatic
  • Fuel Gasoline
  • Body Sedan
  • Seats 5
  • Doors 4-door

What people actually pay

117 price observations · updated Sep 6, 2026
Luxury · AWD
$21,995
$9,893 $17,457 $25,020 $32,584 $40,147
Price trend

Median up $1,101 over the last 12 months.

2018 CT6 price history →
Cost to run

22/30 mpg city/highway. Roughly $1,860/yr on fuel at 15,000 miles.

EPA estimate for the 2018 CT6

Safety, in plain English

Driver assistance — varies by configuration
  • ✓ Warns you before a crash
  • ✓ Brakes for you in an emergency
  • ✓ Watches your blind spot
  • ✓ Warns when you drift from your lane
  • ✓ Steers you back into the lane
Decoded from NHTSA build records.

What 1G6KE5R6-J means

1G6 KE5R6 · J
1G6
the World Manufacturer Identifier Cadillac registered — assembled in the United States
KE5R6
together encode the CT6 line — Sedan, 3L 6cyl, All-wheel drive — as Cadillac filed it, these five characters are read as one block, not letter by letter
J
in position 10 — model year 2018
9, 11–17
vehicle-specific fields: check digit, plant code and production sequence
1 rare configuration — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.

Already looking at a specific CT6?

Paste its VIN — we’ll open that exact car’s page: its configuration, market position and every listing we’ve tracked.

2018 Cadillac CT6 prices →