Comparison Mercedes-Benz SL (R107) 450 SL V8 (217 Hp) Automatic & Porsche 911 (992) Carrera S 3.0 (450 Hp) PDK & Porsche 928 5.4 GTS V8 (350 Hp) Automatic
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| Brand: | Mercedes-Benz | Porsche | Porsche |
| Model: | SL | 911 | 928 |
| Generation: | SL (R107) | 911 (992) | 928 |
| Engine / modification: | 450 SL V8 (217 Hp) Automatic | Carrera S 3.0 (450 Hp) PDK | 5.4 GTS V8 (350 Hp) Automatic |
| Production start: | 1975 year | 2018 year | 1991 year |
| Production end: | 1980 year | 1995 year | |
| Coupe type: | Roadster | Coupe | Coupe |
| Num. of Doors: | 2 | 2 | 2 |
| Num. of seats: | 2 | 2+2 | 4 |
| Fuel consumption / economy - urban: | 10.7 l/100 km | ||
| Fuel consumption / economy - extra urban: | 7.9 l/100 km | ||
| Fuel consumption / economy - combined: | 14.5 l/100 km | 8.9 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.29 | ||
| Fuel tank volume: | 90 l | 64 l | 86 l |
| Emission standard: | Euro 6d - TEMP | ||
| CO2 emissions: | 205 g/km | ||
| Power: | 217 hp | 450 hp | 350 hp |
| Max power in: | 5000 rpm. | 6500 rpm. | 5700 rpm. |
| Maximum speed: | 210 km/h | 308 km/h | 275 km/h |
| Acceleration from 0 to 100 km/h: | 9.3 sec | 3.7 sec | |
| Acceleration from 0 to 200 km/h: | 12.4 sec | ||
| Torque: | 360 Nm @ 3250 rpm. | 530 Nm @ 2300-5000 rpm. | 500 Nm @ 4250 rpm. |
| Model Engine: | M 117 E 45 / 117.985 | M28.50 | |
| Engine position: | Front, longitudinal | Rear, longitudinal | Front, longitudinal |
| Engine displacement: | 4520 cm3 | 2981 cm3 | 5397 cm3 |
| Engine oil capacity: | 9 l | 7.5 l | |
| Coolant: | 15 l | 16 l | |
| Fuel System: | Direct injection | ||
| Maximum engine speed: | 7500 rpm. | 6800 rpm. | |
| Aspiration / Turbine: | BiTurbo | ||
| Position of cylinders: | Boxer | V engine | |
| Valvetrain: | SOHC | DOHC | |
| Number of cylinders: | 8 | 6 | 8 |
| Number of valves per cylinder: | 2 | 4 | 4 |
| Compression ratio: | 8.8 | 10.2 | 10.4 |
| Piston Stroke: | 85 mm | 76.4 mm | 85.9 mm |
| Cylinder Bore: | 92 mm | 91 mm | 100 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 3 | 8 PDK | 4 |
| Length: | 4390 mm | 4519 mm | 4523 mm |
| Width: | 1790 mm | 1852 mm | 1890 mm |
| Width including mirrors: | 2024 mm | ||
| Height: | 1300 mm | 1300 mm | 1282 mm |
| Wheelbase: | 2455 mm | 2450 mm | 2500 mm |
| Front track: | 1452 mm | 1589 mm | 1551 mm |
| Rear (Back) track: | 1440 mm | 1557 mm | 1616 mm |
| Ride height(clearance): | 115 mm | ||
| Minimum volume of Luggage (trunk): | 132 l | 200 l | |
| Maximum amount of Luggage (trunk): | 400 l | ||
| Front suspension: | Double wishbone | Independent type McPherson | |
| Rear suspension: | Threaded twist beam | Multi-link independent | |
| Max weight: | 2000 kg | 1985 kg | 1925 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs | Disc |
| Kerb Weight: | 1580 kg | 1515 kg | 1650 kg |
| ABS: | yes | ||
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | Electric Steering | Hydraulic Steering |
| Max. roof load: | 75 kg | ||
| Minimum turning circle (turning diameter): | 11.2 m | 10.9 m | |
| Permitted towbar download: | 75 kg | ||
| Tire size: | Front wheel tires: 205/70 R14 | 245/35 ZR 20; 305/30 ZR 21 | Front wheel tires: 255/40 ZR17 |
| Wheel rims size: | Front wheel rims: 6.5J x 14 | 8.5J x 20; 11.5J x 21 | Front wheel rims: 7.5J x 17 |