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BMW

BMW - Z4 (2003)

Looking for the latest BMW Z4 price trends? Whether you’re budgeting for a new 2025 Z4 or browsing a classic 2003 model, this guide delivers clear, up-to-date insights into what to expect. The BMW Z4, with its sleek coupe styling and powerful performance, commands a premium in the sports‑convertible segment—but how steep is that premium, and does the price hold up over time?

The 2003 BMW Z4 represents the first generation of the Z4 line, blending classic BMW dynamics with refreshing late‑2000s technology. Buyers today often ask, "What is a 2003 BMW Z4 worth?" and the answer hinges on mileage, condition, and market trends. Below you’ll find a snapshot of key details that shape the vehicle’s valuation.

  • Engine: 2.5‑liter Twin‑Tourbo inline‑4 (430 hp in 2005‑07 models, 320 hp in earlier 2003‑04)
  • Transmission: 6‑speed manual (original) or 7‑speed dual‑clutch automatic (from 2005)
  • Fuel Type: Premium gasoline
  • Horsepower: 310 hp (2003) – 430 hp (2006‑07), 258–260 hp (2024 2.0‑liter TFSI)
  • Torque: 319 lb‑ft (2003) – 443 lb‑ft (2006‑07)
  • Drive Layout: Rear‑wheel drive
  • Dimensions: 176 in. wheelbase, 171 in. length, 73 in. width, 51 in. height
  • Weight: 3,600–3,800 lb
    • Top Speed: Up to 160 mph (mid‑2000s) with optional Z4 M12 Extrax, 146 mph (2024) with 2.0‑liter TFSI
  • 0‑60 mph: 4.8‑5.4 s depending on engine
  • Fuel Economy: 19–22 mpg city, 23–26 mpg highway (2003–07)
  • Interior Features: Leather‑trimmed seats, power‑trim steering, climate control, iDrive audio (20‑inch screen in newer models)
  • Safety: Driver‑assist suite (lane‑change assist, night‑vision in 2024 Z4)

BMW Z4 Depreciation Insight

When you examine the BMW Z4 depreciation curve, you’ll see the common pattern for high‑end sports cars: an initial steep drop followed by a gradual plateau. Over the first year, the Z4 typically loses 15‑20% of its value. After the first three years, a blended rate of 5‑8% per year is common, depending on mileage and maintenance records.

Used cars beginning at the 2003 edition have historically retained about 45‑55% of their original price after five years, assuming average mileage of 20,000–25,000 miles per year and no major repairs. More recent Z4s, especially the 2024 flagship with its 2.0‑liter turbocharged engine, tend to hold roughly 50‑60% of purchase price by year five, due to robust aftermarket support and lower maintenance costs compared to earlier turbo models.

When you’re calculating the used BMW Z4 price for a particular vehicle, keep in mind the variables that influence resale value: