BMW Z4 Roadster (2002 – 2006) vs Porsche Boxster (2002 – 2005): specs compared
Both offer around 231 hp at most. The BMW Z4 Roadster is quicker, reaching 100 km/h in 5.9 s against 6.4 s. It uses less fuel, from 6.9 L/100 km against 9.7 L/100 km. It is the lighter car, from 1,220 kg against 1,275 kg. At 4,315 mm, the Porsche Boxster is 223 mm longer than the BMW Z4 Roadster.
| Specification |
BMW
Z4 Roadster
2002 – 2006
|
Porsche
Boxster
2002 – 2005
|
|---|---|---|
| Overview | ||
| Origin | Germany | Germany |
| Documented years | 2002 – 2006 | 2002 – 2005 |
| Body style | Roadster · Convertible | — |
| Variants | 5 | 2 |
| Fuel | Petrol | Petrol |
| Drive | RWD | RWD |
| Gearbox | Automatic · Manual | Automatic · Manual |
| Performance | ||
| Power | 152 – 231 hp | 228 hp |
| Torque | 201 – 300 Nm | 260 Nm |
| 0–100 km/h | 5.9 – 8.2 s | 6.4 – 7.3 s |
| Top speed | 220 – 250 km/h | 248 – 253 km/h |
| Economy | ||
| Fuel economy | 6.9 – 9.5 L/100 km | 9.7 – 10.7 L/100 km |
| Dimensions | ||
| Length | 4,092 mm | 4,315 mm |
| Width | 1,781 mm | 1,778 mm |
| Height | 1,298 mm | 1,290 mm |
| Wheelbase | 2,494 mm | 2,416 mm |
| Curb weight | 1,220 – 1,365 kg | 1,275 – 1,330 kg |
Ranges cover all variants of each car. The highlight marks the best version per row.

