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 BMW Z4 Roadster 2002 – 2006 Porsche Boxster 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.

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