Comparison Porsche 911 (992) GT3 4.0 (510 Hp) PDK & Alfa Romeo Spider (Premium) 2.4 JTDM 20V (200 HP)
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| Brand: | Porsche | Alfa Romeo |
| Model: | 911 | Spider |
| Generation: | 911 (992) | Spider (Premium) |
| Engine / modification: | GT3 4.0 (510 Hp) PDK | 2.4 JTDM 20V (200 HP) |
| Production start: | 2021 year | 2007 year |
| Production end: | 2010 year | |
| Coupe type: | Coupe | Cabriolet |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 2 | 2 |
| Fuel consumption / economy - urban: | 9.2 l/100 km | |
| Fuel consumption / economy - extra urban: | 5.4 l/100 km | |
| Fuel consumption / economy - combined: | 6.8 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.34 | |
| Fuel tank volume: | 64 l | 70 l |
| Emission standard: | Euro 6d-ISC-FCM | EURO IV |
| Power: | 510 hp | 200 hp |
| Max power in: | 8400 rpm. | 6500 rpm. |
| Maximum speed: | 318 km/h | 231 km/h |
| Acceleration from 0 to 100 km/h: | 3.4 sec | 8.1 sec |
| Acceleration from 0 to 200 km/h: | 10.8 sec | |
| Torque: | 470 Nm @ 6100 rpm. | 230 Nm/4500 rpm. |
| Model Engine: | EA9A2 | |
| Engine position: | Rear, longitudinal | Front, transverse |
| Engine displacement: | 3996 cm3 | 2198 cm3 |
| Fuel System: | Direct injection | Direct injection |
| Maximum engine speed: | 9000 rpm. | |
| Position of cylinders: | Boxer | Inline |
| Valvetrain: | DOHC | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 13.3 | 11.3 |
| Piston Stroke: | 81.5 mm | 94.6 mm |
| Cylinder Bore: | 102 mm | 86 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 7 PDK | |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4573 mm | 4393 mm |
| Width: | 1852 mm | 1830 mm |
| Width including mirrors: | 2027 mm | |
| Height: | 1279 mm | 1318 mm |
| Wheelbase: | 2457 mm | 2528 mm |
| Front track: | 1601 mm | 1579 mm |
| Rear (Back) track: | 1553 mm | 1559 mm |
| Minimum volume of Luggage (trunk): | 132 l | 253 l |
| Front suspension: | Double wishbone | Helical spring |
| Rear suspension: | Multi-link independent | Transverse stabilizer |
| Max weight: | 1782 kg | |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Disc | |
| Kerb Weight: | 1435 kg | 1530 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 10.4 m | 10.7 m |
| Tire size: | Front wheel tires: 255/35 ZR 20 | 215/55 R16 |
| Wheel rims size: | Front wheel rims: 9.5 J x 20 |