Comparison Mercedes-Benz SL (R107, facelift 1985) 300 SL CAT (180 Hp) Automatic & Infiniti Q50 (facelift 2017) S 3.0t (405 Hp) Automatic & BMW X4 (G02 LCI, facelift 2021) 20i (184 Hp) MHEV xDrive Steptronic
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| Brand: | Mercedes-Benz | Infiniti | BMW |
| Model: | SL | Q50 | X4 |
| Generation: | SL (R107, facelift 1985) | Q50 (facelift 2017) | X4 (G02 LCI, facelift 2021) |
| Engine / modification: | 300 SL CAT (180 Hp) Automatic | S 3.0t (405 Hp) Automatic | 20i (184 Hp) MHEV xDrive Steptronic |
| Production start: | 1985 year | 2017 year | 2021 year |
| Production end: | 1989 year | ||
| Coupe type: | Roadster | Sedan | |
| Num. of Doors: | 2 | 4 | 5 |
| Num. of seats: | 2 | 5 | 5 |
| Fuel consumption / economy - urban: | 14.4 l/100 km | 13.3 l/100 km | |
| Fuel consumption / economy - extra urban: | 9.8 l/100 km | 6.7 l/100 km | |
| Fuel consumption / economy - combined: | 9.1 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.28 | 0.29-0.35 | |
| Fuel tank volume: | 85 l | 80 l | 65 l |
| Emission standard: | Euro 6 | Euro 6d | |
| CO2 emissions: | 206 g/km | ||
| Power: | 180 hp | 405 hp | 184 hp |
| Max power in: | 5700 rpm. | 6400 rpm. | 5000-6500 rpm. |
| Maximum speed: | 195 km/h | 250 km/h | 215 km/h |
| Acceleration from 0 to 100 km/h: | 9.8 sec | 5.1 sec | 8.4 sec |
| CO2 emissions (WLTP): | 170-190 g/km | ||
| Torque: | 250 Nm @ 4400 rpm. | 475 Nm @ 1600-5200 rpm. | 300 Nm @ 1350-4000 rpm. |
| Model Engine: | M 103 E 30 / 103.982 | ||
| Engine position: | Front, longitudinal | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2962 cm3 | 1991 cm3 | 1998 cm3 |
| Engine oil capacity: | 6 l | 5.25 l | |
| Coolant: | 8 l | ||
| Fuel System: | Direct injection | Direct injection | |
| Aspiration / Turbine: | Turbocharger | ||
| Position of cylinders: | Inline | V engine | Inline |
| Valvetrain: | SOHC | VALVETRONIC, Double VANOS | |
| Number of cylinders: | 6 | 6 | 4 |
| Number of valves per cylinder: | 2 | 4 | 4 |
| Compression ratio: | 9.2 | 11 | |
| Piston Stroke: | 80.25 mm | 94.6 mm | |
| Cylinder Bore: | 88.5 mm | 82 mm | |
| Electric motor power: | 11 | ||
| Wheel Drive: | Rear wheel drive | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 4 | 7 | 8 Steptronic |
| Length: | 4390 mm | 4810 mm | 4751 mm |
| Width: | 1790 mm | 1820 mm | 1918 mm |
| Width including mirrors: | 2084 mm | ||
| Height: | 1305 mm | 1430 mm | 1621 mm |
| Wheelbase: | 2460 mm | 2850 mm | 2864 mm |
| Front track: | 1465 mm | 1620 mm | |
| Rear (Back) track: | 1466 mm | 1666 mm | |
| Ride height(clearance): | 204 mm | ||
| Approach angle: | 25 ° | ||
| Departure angle: | 22.2 ° | ||
| Ramp angle: | 20 ° | ||
| Wading depth: | 500 mm | ||
| Minimum volume of Luggage (trunk): | 500 l | 525 l | |
| Maximum amount of Luggage (trunk): | 1430 l | ||
| Front suspension: | Double wishbone | ||
| Rear suspension: | Independent multi-link | ||
| Max weight: | 1930 kg | 2420 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1510 kg | 1724-1744 kg | 1800 kg |
| ABS: | yes | ||
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | |
| Power steering: | Electric Steering | Electric Steering | |
| Max. roof load: | 100 kg | ||
| Minimum turning circle (turning diameter): | 12.1 m | ||
| Permitted trailer load with brakes (12%): | 1500 kg | 2400 kg | |
| Permitted trailer load without brakes: | 750 kg | 750 kg | |
| Permitted towbar download: | 100 kg | ||
| Tire size: | Front wheel tires: 205/65 R15 | 225/60 R18 | |
| Wheel rims size: | Front wheel rims: 7J x 15 | 7J x 18 |