2003 Cadillac Seville: trims, real prices & how to pick yours

2 builds left the factory as a 2003 Seville, each a different combination of engine, transmission and body identified by the first eight characters of its VIN.

  • 2 main configurations
  • 915 vehicles built
  • 6 for sale right now

Which Seville 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 Seville

What actually differs

SLS STS
For sale right now 4 2
Vehicles built 601 314
Same on every 2003 Seville
  • Engine 4.6L 8-cyl
  • Fuel Gasoline
  • Body Sedan
  • Doors 4-door
  • Typical price today $4,981
Will it hold value?

A Seville typically keeps about 95% of its price over 5 years — a 5-year-old one runs about $4,718 today.

Seville depreciation by year →
Cost to run

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

EPA estimate for the 2003 Seville

Safety, in plain English

What 1G6KS54Y-3 means

1G6 KS54Y · 3
1G6
the World Manufacturer Identifier Cadillac registered — assembled in the United States
KS54Y
together encode the Seville line — Sedan, 4.6L 8cyl — as Cadillac filed it, these five characters are read as one block, not letter by letter
3
in position 10 — model year 2003
9, 11–17
differ on every car: check digit, plant code and the serial number

Already looking at a specific Seville?

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