
BMW Z4 I (E85/E86) LCI — Wheel Fitment & Specs
Overview
The BMW Z4 E85/E86 is a sports car produced from July 2002 to December 2008, succeeding the BMW Z3. It was manufactured in Greer, South Carolina at the Plant Spartanburg. The first generation of the Z4 includes both roadster (E85) and coupé (E86) body styles; the coupé version was introduced later in 2006. This model is based on a platform related to the BMW 3 Series E46, featuring front-engine, rear-wheel-drive layout.
Wheel fitment
| Bolt pattern (PCD) | 5x120 |
| Centre bore | 72.6 mm |
| Bolt / thread | M12 x 1.5 (bolts) |
| Wheel-bolt torque | 140 Nm |
| Seat type | tapered |
| Factory setup | staggered |
| TPMS | direct |
| Run-flat | Yes |
Aftermarket wheel sizes — read per position:
| Position | Width | Offset |
|---|---|---|
| Front | 7J–8.5J | ET33–ET45 |
| Rear (staggered) | 8.5J–9.5J | ET34–ET45 |
As a rule, each extra 1J of width wants roughly +8–10 ET to keep the wheel tucked. The exact offset and any spacer are confirmed by the fit-check.
UK popularity & demand
Based on DfT VEH0124 vehicle-parc data (2025), there are approximately 32,081 BMW Z4 on UK roads, placing it in the top 8% of car models by volume across our fitment database. That makes its wheel fitment a high-demand size to keep in stock — one reason we track its exact spec here.
Source: DfT/DVLA licensed-vehicle statistics (VEH0124), matched to the AIWheelTech fitment database.
Engines & drivetrain
| Variant | Engine | Fuel | Power | Drive |
|---|---|---|---|---|
| M Roadster | 3.2L S54B32 inline-six | petrol | 338 hp | RWD |
| M Coupé | 3.2L S54B32 inline-six | petrol | 338 hp | RWD |
| 3.0si Roadster | 3.0L N52B30 inline-six | petrol | 261 hp | RWD |
| 3.0si Coupé | 3.0L N52B30 inline-six | petrol | 261 hp | RWD |
| 3.0i (pre-2006) | 3.0L M54B30 inline-six | petrol | 228 hp | RWD |
| 2.5si | 2.5L N52B25 inline-six | petrol | 214 hp | RWD |
| 3.0i (post-2006) | 3.0L N52B30 inline-six | petrol | 214 hp | RWD |
| 2.5i (pre-2006) | 2.5L M54B25 inline-six | petrol | 185 hp | RWD |
| 2.5i (post-2006) | 2.5L N52B25 inline-six | petrol | 174 hp | RWD |
| 2.2i | 2.2L M54B22 inline-six | petrol | 170 hp | RWD |
| 2.0i | 2.0L N46B20 inline-four | petrol | 150 hp | RWD |
Performance
| Variant | Power | 0–62 mph | Top speed |
|---|---|---|---|
| 2.0i | 150 hp | 8.2 s | 93 mph |
| 2.2i | 170 hp | 7.7 s | 98 mph |
| 2.5i (pre-2006) | 185 hp | 7 s | 93 mph |
| 2.5i (post-2006) | 174 hp | 7 s | 93 mph |
| 2.5si | 214 hp | 6.5 s | 97 mph |
| 3.0i (pre-2006) | 228 hp | 5.9 s | 127 mph |
| 3.0i (post-2006) | 214 hp | 6.2 s | 97 mph |
| 3.0si Roadster | 261 hp | 5.6 s | 97 mph |
| 3.0si Coupé | 261 hp | 5.6 s | 97 mph |
| M Roadster | 338 hp | 4.8 s | 150 mph |
| M Coupé | 338 hp | 4.8 s | 150 mph |
Dimensions
| Length | 4090 mm |
| Width | 1780 mm |
| Height | 1300 mm |
| Wheelbase | 2495 mm |
Body styles & production
| Body styles | Roadster, coupé |
| Produced | 2002–2008 |
| Units produced | 197,950 |
Trim levels
Factory colours
History & notable variants
The Z4 roadster was designed by Anders Warming and launched at the Paris Motor Show in 2002. The coupé version followed in 2005 with its production starting in late May 2006. Notable special models include the Alpina Roadster S (2004-2006) and the Concept Coupé Mille Miglia (2006).
Reliability & owner notes
- Pros: Stiff chassis, improved over the Z3; Wide range of engine options including powerful straight-six engines; Available in both roadster and coupé body styles
- Cons: Limited trunk space compared to larger BMW models; Some manual transmission options were discontinued early in production run