Porsche Boxster S vs BMW Z4 3.0si
| Category | BMW Z4 3.0si | Porsche Boxster S |
|---|---|---|
| Engine layout | 3.0 l R6 | 3.2 l B6 |
| Max power (ps / bhp) | 265 / 261 | 280 / 276 |
| Max torque (Nm / lb-ft) | 315 / 232 | 320 / 236 |
| Curb weight (kg / lb) | 1387 / 3058 | 1397 / 3080 |
| Power / tonne (ps / bhp) | 191 / 189 | 200 / 198 |
| Average price | €42,000 | €55,000 |
Lap Times
| Track | BMW Z4 3.0si | Porsche Boxster S |
|---|---|---|
| Autozeitung test track | 1:45.80 | 1:42.30 |
| Hockenheim Short | 1:17.60 | 1:15.70 |
| Anglesey | 0:53.03 | 0:52.55 |
Acceleration
| Speed & distance | BMW Z4 3.0si | Porsche Boxster S |
|---|---|---|
| 0 - 80 kph | 4.3 s | 4.1 s |
| 0 - 100 kph | 5.9 s | 5.4 s |
| 0 - 120 kph | 8.3 s | 7.7 s |
| 0 - 140 kph | 10.7 s | 9.6 s |
| 0 - 160 kph | 14.3 s | 12.4 s |
| 0 - 180 kph | 18.4 s | 15.7 s |
| 0 - 200 kph | 22.0 s | 18.9 s |
| 0 - 100 mph | 14.2 s | 11.9 s |
| Est. 1/8 mile | 10.0 s @ 85.7 mph | 9.8 s @ 88.2 mph |
| 1/4 mile | 14.4 s | 13.4 s |
Rolling acceleration
| Speed | BMW Z4 3.0si | Porsche Boxster S |
|---|---|---|
| 60 - 100 kph (4) | 5.8 s | 6.3 s |
| 60 - 100 kph (5) | 7.3 s | 7.6 s |
| 80 - 120 kph (5) | 7.6 s | 6.8 s |
| 80 - 120 kph (6) | 9.8 s | 8.6 s |
| Est. 100 - 140 kph | 4.7 s | 4.7 s |
| Est. 100 - 200 kph | 15.9 s | 13.6 s |
General performance
| Category | BMW Z4 3.0si | Porsche Boxster S |
|---|---|---|
| Top speed | 255 kph (158 mph) | 268 kph (167 mph) |
| Est. max acceleration | 0.51 g (5 m/s²) | 0.54 g (5 m/s²) |
| 18m slalom | 65.1 kph (40.5 mph) | 71.1 kph (44.2 mph) |
| Fuel economy | 6.8 l/100 km (35 mpg US / 42 UK) | 11.9 l/100 km (20 mpg US / 24 UK) |
| 100 kph - 0 | 38 m (123 ft) | 35 m (114 ft) |
Summary
| Category | BMW Z4 3.0si | Porsche Boxster S |
|---|---|---|
| Track Performance | 94 | 100 |
| Straight line speed | 74 | 100 |
| Overall | 86 | 100 |
Verdict
Boxster S is the fastest by considerable margin.
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Acceleration graph
