Comparison Opel Senator A 2.5 (115 Hp) & Buick Sedan 3.0 i V6 (172 Hp) & Porsche 718 Cayman 2.0 (300 Hp)
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| Brand: | Opel | Buick | Porsche |
| Model: | Senator | Sedan | 718 |
| Generation: | Senator A | Sedan | 718 Cayman |
| Engine / modification: | 2.5 (115 Hp) | 3.0 i V6 (172 Hp) | 2.0 (300 Hp) |
| Production start: | 1978 year | 1998 year | 2016 year |
| Production end: | 1980 year | ||
| Coupe type: | Sedan | Sedan | Coupe |
| Num. of Doors: | 4 | 4 | 2 |
| Num. of seats: | 5 | 5 | 2 |
| Fuel consumption / economy - urban: | 11.2 l/100 km | 9.9 l/100 km | |
| Fuel consumption / economy - extra urban: | 6.9 l/100 km | 6.0 l/100 km | |
| Fuel consumption / economy - combined: | 13.2 l/100 km | 7.4 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.45 | 0.30 | |
| Fuel tank volume: | 75 l | 64 l | 54 l |
| Emission standard: | EURO VI | ||
| CO2 emissions: | 168 g/km | ||
| Power: | 115 hp | 172 hp | 300 hp |
| Max power in: | 5200 rpm. | 5200 rpm. | 6500 rpm. |
| Maximum speed: | 180 km/h | 200 km/h | 275 km/h |
| Acceleration from 0 to 100 km/h: | 10.8 sec | 5.1 sec | |
| Acceleration from 0 to 200 km/h: | 18.3 sec | ||
| Torque: | 176 Nm/3800-4200 rpm. | 256 Nm/4400 rpm. | 380 Nm/1950-4500 rpm. |
| Engine position: | Front, transverse | Middle, longitudinal | |
| Engine displacement: | 2490 cm3 | 2980 cm3 | 1988 cm3 |
| Fuel System: | Carburettor | Multi-point injection | Direct injection |
| Maximum engine speed: | 7500 rpm. | ||
| Aspiration / Turbine: | Turbocharging | ||
| Position of cylinders: | Inline | V engine | Boxer |
| Valvetrain: | SOHC | - | |
| Number of cylinders: | 4 | 6 | 4 |
| Number of valves per cylinder: | 2 | 2 | 4 |
| Compression ratio: | 9.5 | 9.5 | |
| Piston Stroke: | 80 mm | 76.4 mm | |
| Cylinder Bore: | 89 mm | 91 mm | |
| Wheel Drive: | Front wheel drive | Rear wheel drive | |
| Number of Gears (automatic transmission): | 4 | ||
| Number of Gears (manual transmission): | 4 | 6 | |
| Length: | 4811 mm | 4940 mm | 4379 mm |
| Width: | 1728 mm | 1845 mm | 1801 mm |
| Width with mirrors folded: | 1994 mm | ||
| Height: | 1415 mm | 1440 mm | 1286 mm |
| Wheelbase: | 2683 mm | 2770 mm | 2475 mm |
| Front track: | 1443 mm | 1575 mm | 1515 mm |
| Rear (Back) track: | 1472 mm | 1555 mm | 1532 mm |
| Ride height(clearance): | 140 mm | ||
| Minimum volume of Luggage (trunk): | 475 l | 334 l | |
| Maximum amount of Luggage (trunk): | 715 l | ||
| Front suspension: | The depreciated rack | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Transverse stabilizer | McPherson | |
| Max weight: | 1900 kg | 1655 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Drum | Disc | Ventilated discs |
| Kerb Weight: | 1370 kg | 1550 kg | 1335 kg |
| ABS: | yes | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Electric Steering | ||
| Minimum turning circle (turning diameter): | 10.8 m | 10.98 m | |
| Tire size: | 225/60 R16 | 235/45 ZR 18; 265/45 ZR 18 | |
| Wheel rims size: | 6.5J x 16 | 8 J x 18 ET 57; 9.5 J x 18 ET 49 |