Technical specifications
| Clear list | BMW Z4 | Porsche Cayman |
| Totals | BMW Z4 3.0 (M40i) × | Porsche Cayman 3.4 S × |
| Mark | BMW | Porsche |
| Model | Z4 3.0 (M40i) | Cayman 3.4 S |
| Year | 2018 | 2012 |
| Number of doors/seats | 2/2 | 3/2+2 |
| Body type | Roadster | Coupe |
| Unladen Weight | 1535 | 1340 (1370) |
| Gross Weight Limit | 1860 | 1665 (1695) |
| Top Speed, km/h | 250 | 283 (281) |
| Acceleration 0-100 kph | 4.5 | 5 (4.9) |
| Minimum turning radius, m | - | - |
| Cargo Volume, min/max, L | 281 | 150+275 |
| Dimensions specifications, mm | BMW Z4 3.0 (M40i) × | Porsche Cayman 3.4 S × |
| Length | 4324 | 4380 |
| Width | 1864 | 1801 |
| Height | 1304 | 1294 |
| Wheelbase | 2470 | 2475 |
| Front/rear Track | 1609/1616 | 1526/1536 |
| Ground clearance | 117 | - |
| Engine specifications | BMW Z4 3.0 (M40i) × | Porsche Cayman 3.4 S × |
| Type | Gasoline Direct Injection, turbocharging | Gasoline Direct Injection |
| Displacement, cm3 | 2998 | 3436 |
| Compression ratio | 11 | 12.5 |
| Number and arrangement of cylinders | 6 cylinders, in-line | 6 cylinders, boxer |
| The diameter of the cylinder x stroke, mm | 82x94.6 | 97х77.5 |
| Number of valves | 24 | 24 |
| Power, hp/rpm | 340/5000-6500 | 325/6700 |
| Max torque, Nm/RPM | 500/1600-4500 | 370/4500-5800 |
| Transmission specifications | BMW Z4 3.0 (M40i) × | Porsche Cayman 3.4 S × |
| Gearbox | 8-speed automatic | 6-speed manual / 7-speed automatic PDK |
| Drive Type | Rear wheel drive | Rear wheel drive |
| Suspension specifications | BMW Z4 3.0 (M40i) × | Porsche Cayman 3.4 S × |
| Front | Upper and lower A-arm (double wishbone) | MacPherson strut |
| Rear | multi-link suspensions | MacPherson strut |
| Tire Size | 255/40 R18, 275/40 R18 | 235/40 R19, 265/40 R19 |
| Disk | 5x120 ET34 d72.6
| 5x130 ET50 d71.5
|
| Brakes specifications | BMW Z4 3.0 (M40i) × | Porsche Cayman 3.4 S × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Ventilated discs | Ventilated discs |
| Fuel consumption specifications, L/100 km | BMW Z4 3.0 (M40i) × | Porsche Cayman 3.4 S × |
| City | 9.2 | 12.7 (11.4) |
| Highway | 6.3 | 7.1 (6.3) |
| Combined | 7.4 | 9 (8.2) |
| Fuel | 95 | 98 |
| Tank, L | 52 | 64 |
| Clear list | BMW Z4 | Porsche Cayman |
