2006 Cadillac STS: trims, real prices & how to pick yours

7 builds left the factory as a 2006 STS, each a different combination of engine, transmission and body identified by the first eight characters of its VIN.

  • 3 main configurations
  • 3,454 vehicles built
  • 23 for sale right now

Which STS 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 STS

What actually differs

Base configuration V8 V
Engine 3.6L 6-cyl 4.6L 8-cyl 4.4L 8-cyl
Typical price today $5,500 $7,965 $17,000
For sale right now 11 7 5
Vehicles built 2,393 899 158
Same on every 2006 STS
  • Fuel Gasoline
  • Body Sedan
  • Doors 4-door
Price trend

Median up $150 over the last 11 months.

2006 STS price history →
Cost to run

16/25 mpg city/highway. Roughly $2,450/yr on fuel at 15,000 miles.

EPA estimate for the 2006 STS

Safety, in plain English

What 1G6DC67A-6 means

1G6 DC67A · 6
1G6
the World Manufacturer Identifier Cadillac registered — assembled in the United States
DC67A
together encode the STS line — Sedan, 4.6L 8cyl — as Cadillac filed it, these five characters are read as one block, not letter by letter
6
in position 10 — model year 2006
9, 11–17
differ on every car: check digit, plant code and the serial number
Real VINs from this run 1G6DC67A 660150880
4 rare configurations — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.

Already looking at a specific STS?

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

2006 Cadillac STS prices →