Comparison Mercedes-Benz S-class Long (W221, facelift 2009) S 450 CDI V8 (320 Hp) G-TRONIC & Hyundai Elantra VII (CN7) 1.6 GDI (139 Hp) HEV DCT
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| Brand: | Mercedes-Benz | Hyundai |
| Model: | S-class | Elantra |
| Generation: | S-class Long (W221, facelift 2009) | Elantra VII (CN7) |
| Engine / modification: | S 450 CDI V8 (320 Hp) G-TRONIC | 1.6 GDI (139 Hp) HEV DCT |
| Production start: | 2009 year | 2020 year |
| Production end: | 2010 year | |
| Coupe type: | Sedan | Sedan |
| Num. of Doors: | 4 | 4 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 13-13.2 l/100 km | 4.4-4.8 l/100 km |
| Fuel consumption / economy - extra urban: | 6.9-7.1 l/100 km | 4.2-4.5 l/100 km |
| Fuel consumption / economy - combined: | 9.1-9.3 l/100 km | 4.4-4.7 l/100 km |
| Fuel Type: | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.28 | |
| Fuel tank volume: | 90 l | 42 l |
| CO2 emissions: | 240-245 g/km | |
| Power: | 320 hp | 104 hp |
| Max power in: | 3600 rpm. | 5700 rpm. |
| Maximum speed: | 250 km/h | |
| Acceleration from 0 to 100 km/h: | 6.6 sec | |
| Torque: | 730 Nm @ 2200 rpm. | 148 Nm @ 4000 rpm. |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 3996 cm3 | 1580 cm3 |
| Engine oil capacity: | 4.1 l | |
| Fuel System: | Diesel Commonrail | Direct injection |
| Aspiration / Turbine: | Turbocharger / Intercooler | |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | DOH | |
| Number of cylinders: | 8 | 4 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 17 | 10 |
| Piston Stroke: | 97 mm | |
| Cylinder Bore: | 72 mm | |
| Electric motor power: | 43 | |
| Electric motor Torque: | 169 Nm | |
| Battery capacity: | 1.32 kWh | |
| System power: | 139 Hp hp/ rpm. | |
| System torque: | 264 Nm Nm/ rpm. | |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 7G-TRONIC | 6 DCT |
| Length: | 5226 mm | 4676 mm |
| Width: | 1871 mm | 1826 mm |
| Width including mirrors: | 2120 mm | |
| Height: | 1479 mm | 1415 mm |
| Wheelbase: | 3165 mm | 2720 mm |
| Front track: | 1600 mm | 1580-1585 mm |
| Rear (Back) track: | 1606 mm | 1590-1600 mm |
| Ride height(clearance): | 140 mm | |
| Front overhang: | 888 mm | 894 mm |
| Rear overhang: | 1173 mm | 1059 mm |
| Minimum volume of Luggage (trunk): | 560 l | 402 l |
| Front suspension: | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Independent, spring multi-link with stabilizer | |
| Max weight: | 2700 kg | 1850 kg |
| Front brakes: | Disc | |
| Rear brakes: | Disc | |
| Kerb Weight: | 2075 kg | 1345-1392 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 12.2 m | |
| Tire size: | 255/45 R18 | |
| Wheel rims size: | R18 | R16; R17 |