Comparison Mercedes-Benz SLK (R171, facelift 2008) SLK 350 V6 (305 Hp) & GMC Sierra 2500HD V (GMTT1XX) Double Cab Standard Bed 6.6 Duramax TD V8 (445 Hp) Automatic
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| Brand: | Mercedes-Benz | GMC |
| Model: | SLK | Sierra 2500HD |
| Generation: | SLK (R171, facelift 2008) | Sierra 2500HD V (GMTT1XX) Double Cab Standard Bed |
| Engine / modification: | SLK 350 V6 (305 Hp) | 6.6 Duramax TD V8 (445 Hp) Automatic |
| Production start: | 2008 year | 2020 year |
| Production end: | 2011 year | 2023 year |
| Coupe type: | Roadster | Pick-up |
| Powertrain Architecture: | Internal Combustion engine | |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 2 | 5 |
| Fuel Type: | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.32 | |
| Fuel tank volume: | 70 l | 111 l |
| Emission standard: | Euro 5 | |
| Power: | 305 hp | 445 hp |
| Max power in: | 6500 rpm. | 2800 rpm. |
| Maximum speed: | 250 , Electronically limited km/h | |
| Acceleration from 0 to 100 km/h: | 5.4 sec | |
| Torque: | 360 Nm @ 4900 rpm. | 1234 Nm @ 1600 rpm. |
| Model Engine: | M 272.969 | Duramax L5P |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 3498 cm3 | 6604 cm3 |
| Engine oil capacity: | 8 l | 9.5 l |
| Coolant: | 10.2 l | 29.1 l |
| Valvetrain: | DOHC | OHV |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 11.7 | 16 |
| Piston Stroke: | 86 mm | 99 mm |
| Cylinder Bore: | 92.9 mm | 103 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4107 mm | 6107 mm |
| Width: | 1788 mm | |
| Width including mirrors: | 2005 mm | 2079 mm |
| Height: | 1298 mm | 2031 mm |
| Wheelbase: | 2430 mm | 3795 mm |
| Front track: | 1526 mm | 1731 mm |
| Rear (Back) track: | 1549 mm | 1736 mm |
| Ride height(clearance): | 259 mm | |
| Minimum volume of Luggage (trunk): | 208 l | |
| Max weight: | 1800 kg | 4854 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 1430 kg | 3299 kg |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Electric Steering |
| Max. roof load: | 50 kg | |
| Minimum turning circle (turning diameter): | 10.51 m | |
| Permitted trailer load with brakes (12%): | 6577 kg | |
| Tire size: | Front wheel tires: 225/45 R 17 | 265/70 R17; 245/75 R17; 265/70 R18; 265/60 R20 |
| Wheel rims size: | Front wheel rims: 7.5 J x 17 | 7.5J x 17; 8J x 18; 8.5J x 20 |