E85 / E86 Z4

BMW Z4 E85 – The classic roadster reinterpreted

The BMW Z4 E85 is the first generation of the Z4 Roadster and was produced from 2002 to 2008. As the successor to the Z3, it featured significantly modernized technology, a sharper design, and improved handling – and quickly became a true fan favorite.

🔧 Technical highlights

Body : Roadster (E85), from 2006 also Coupé (E86)
Engines : Inline four-cylinder & inline six-cylinder (1.8i – 3.2 M)
Top model : Z4 M Roadster with 343 hp (S54 engine from the E46 M3)
Drive : Rear-wheel drive
Transmission : Manual, automatic, later also SMG (M version)
Weight : approx. 1,280–1,450 kg depending on model

🎯 Driving behavior & character

The E85 offers direct steering, a firm chassis , and a very sporty driving experience—especially in the six-cylinder versions (e.g., 2.5i, 3.0i). Thanks to its 50:50 weight distribution and classic roadster layout, the Z4 is one of the most driver-focused BMWs of its time .

🔥 Popular models & scene

Z4 2.5i / 3.0i : Solid all-rounder with real driving pleasure
Z4 3.0si (from FL) : With the N52B30 engine, 265 hp – very popular with enthusiasts
Z4 M Roadster : Hardcore version with E46 M3 technology – collector value increases!
Also popular for conversions, track days or as a weekend fun car

🛠️ Maintenance & Tuning

Robust technology, but beware of typical weaknesses such as Vanos unit, cooling system, wishbone bushings
Many tuning options: chassis, rims, exhaust, optics, M conversions
Still good parts support and community active worldwide