BMW Z4 sDrive35i vs BMW 650i Cabrio
| Category | BMW Z4 sDrive35i | BMW 650i Cabrio |
|---|---|---|
| Engine layout | 3.0 l R6 | 4.4 l V8 |
| Max power (ps / bhp) | 306 / 302 | 408 / 402 |
| Max torque (Nm / lb-ft) | 400 / 295 | 600 / 443 |
| Curb weight (kg / lb) | 1598 / 3523 | 2081 / 4588 |
| Power / tonne (ps / bhp) | 191 / 189 | 196 / 193 |
| Average price | €56,000 | €106,000 |
Lap Times
| Track | BMW Z4 sDrive35i | BMW 650i Cabrio |
|---|---|---|
| Hockenheim Short | 1:16.60 | 1:15.60 |
| Motortrend Figure-8 | 0:25.20 | 0:25.50 |
Acceleration
| Speed & distance | BMW Z4 sDrive35i | BMW 650i Cabrio |
|---|---|---|
| 0 - 40 kph | 1.9 s | 1.7 s |
| 0 - 60 kph | 3.0 s | 2.7 s |
| 0 - 80 kph | 3.7 s | 3.7 s |
| 0 - 100 kph | 5.0 s | 5.0 s |
| 0 - 120 kph | 7.0 s | 6.9 s |
| 0 - 130 kph | 8.1 s | 7.7 s |
| 0 - 140 kph | 9.2 s | 8.9 s |
| 0 - 160 kph | 12.0 s | 11.2 s |
| 0 - 180 kph | 15.3 s | 13.5 s |
| 0 - 200 kph | 18.4 s | 16.8 s |
| 0 - 100 mph | 11.5 s | 11.3 s |
| Est. 1/8 mile | 9.5 s @ 90.1 mph | 9.3 s @ 92.0 mph |
| 1/4 mile | 13.3 s @ 107.5 mph | 13.2 s |
Rolling acceleration
| Speed | BMW Z4 sDrive35i | BMW 650i Cabrio |
|---|---|---|
| 80 - 120 kph (4) | 4.6 s | 3.4 s |
| 80 - 120 kph (5) | 5.5 s | 4.3 s |
| 80 - 120 kph (6) | 6.5 s | 5.5 s |
| 80 - 160 kph (4) | 9.8 s | 7.9 s |
| 80 - 160 kph (5) | 11.9 s | 9.0 s |
| 80 - 160 kph (6) | 14.1 s | 11.6 s |
| 80 - 120 kph | 3.3 s | 3.2 s |
| Est. 100 - 140 kph | 4.2 s | 3.9 s |
| Est. 100 - 200 kph | 14.2 s | 12.3 s |
General performance
| Category | BMW Z4 sDrive35i | BMW 650i Cabrio |
|---|---|---|
| Top speed | 250 kph (155 mph) | 250 kph (155 mph) |
| Est. 0 - 100 mph - 0 | 19.9 s @ 1706 ft | 18.4 s @ 1545 ft |
| Est. max acceleration | 0.59 g (6 m/s²) | 0.60 g (6 m/s²) |
| 18m slalom | 68.1 kph (42.3 mph) | 63.5 kph (39.5 mph) |
| Fuel economy | 7.3 l/100 km (32 mpg US / 39 UK) | 9.6 l/100 km (25 mpg US / 29 UK) |
| 100 kph - 0 | 36 m (119 ft) | 36 m (117 ft) |
| 190 kph - 0 | 134 m (440 ft) | 131 m (430 ft) |
| 200 kph - 0 | 152 m (499 ft) | 146 m (478 ft) |
Summary
| Category | BMW Z4 sDrive35i | BMW 650i Cabrio |
|---|---|---|
| Track Performance | 100 | 100 |
| Straight line speed | 88 | 100 |
| Overall | 95 | 100 |
Verdict
650i Cabrio is the fastest by a small margin.
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Acceleration graph
