2003 BMW Z4: trims, real prices & how to pick yours

2 builds left the factory as a 2003 Z4, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 2 main configurations sell for $3,800–$20,749 today.

  • 2 main configurations
  • 3,089 vehicles built
  • 90 for sale right now
  • $3,800–$20,749 typical price range

Which Z4 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 Z4

What actually differs

2.5SI 3.0SI
Engine 2.5L 6-cyl 3L 6-cyl
Power 184 hp 225 hp
Typical price today $9,062 $10,000
For sale right now 66 24
Vehicles built 1,876 1,213
Same on every 2003 Z4
  • Fuel Gasoline
  • Body Convertible

What people actually pay

101 price observations · updated Sep 6, 2026
2.5SI
$9,062
3.0SI
$10,000
$3,686 $8,108 $12,529 $16,951 $21,372
Price trend

Median up $785 over the last 12 months.

2003 Z4 price history →
Cost to run

18/26 mpg city/highway. Roughly $2,210/yr on fuel at 15,000 miles.

EPA estimate for the 2003 Z4

What 4USBT334-3 means

4US BT334 · 3
4US
the World Manufacturer Identifier BMW registered — assembled in the United States
BT334
together encode the Z4 line — Convertible, 2.5L 6cyl — as BMW filed it, these five characters are read as one block, not letter by letter
3
in position 10 — model year 2003
9, 11–17
vehicle-specific fields: check digit, plant code and production sequence
Real VINs from this run 4USBT334 93LS47790 4USBT334 73LR62261 4USBT334 53LS42408

Already looking at a specific Z4?

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2003 BMW Z4 prices →