Comparison Mercedes-Benz SLK (R171) SLK 280 V6 (231 Hp) 7G-TRONIC & GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Standard Box 6.0 V8 (360 Hp) Automatic
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| Brand: | Mercedes-Benz | GMC |
| Model: | SLK | Sierra 2500HD |
| Generation: | SLK (R171) | Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Standard Box |
| Engine / modification: | SLK 280 V6 (231 Hp) 7G-TRONIC | 6.0 V8 (360 Hp) Automatic |
| Production start: | 2005 year | 2011 year |
| Production end: | 2007 year | 2014 year |
| Coupe type: | Roadster | Pick-up |
| Powertrain Architecture: | Internal Combustion engine | |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 2 | 5 |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.32 | |
| Fuel tank volume: | 70 l | 136 l |
| Emission standard: | Euro 4 | |
| Power: | 231 hp | 360 hp |
| Max power in: | 6000 rpm. | 5400 rpm. |
| Maximum speed: | 250 , Electronically limited km/h | |
| Acceleration from 0 to 100 km/h: | 6.2 sec | |
| Torque: | 300 Nm @ 2400-5000 rpm. | 515 Nm @ 4200 rpm. |
| Model Engine: | M 272.942 | Vortec L96 |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 2996 cm3 | 5967 cm3 |
| Engine oil capacity: | 8 l | 5.7 l |
| Coolant: | 7.1 l | 15.5 l |
| Maximum engine speed: | 6000 rpm. | |
| Aspiration / Turbine: | Naturally aspirated engine | |
| Valvetrain: | DOHC | OHV, VVT |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 11.1 | 9.6 |
| Piston Stroke: | 82.1 mm | 92 mm |
| Cylinder Bore: | 88 mm | 101.6 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 7 | |
| Length: | 4089 mm | 5857 mm |
| Width: | 1788 mm | |
| Width including mirrors: | 1970 mm | 2032 mm |
| Height: | 1298 mm | 1979 mm |
| Wheelbase: | 2430 mm | 3663 mm |
| Front track: | 1526 mm | 1748 mm |
| Rear (Back) track: | 1549 mm | 1709 mm |
| Ride height(clearance): | 218 mm | |
| Minimum volume of Luggage (trunk): | 208 l | |
| Maximum amount of Luggage (trunk): | 1718 l | |
| Front suspension: | Independent torsion bar, double wishbone | |
| Max weight: | 1755 kg | 4309 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Disc | |
| Kerb Weight: | 1365 kg | 2734 kg |
| Steering type: | Steering rack and pinion | Cone worm with recirculation balls |
| Power steering: | Hydraulic Steering | |
| Max. roof load: | 50 kg | |
| Minimum turning circle (turning diameter): | 10.51 m | 14.6 m |
| Permitted trailer load with brakes (12%): | 5897 kg | |
| Tire size: | Front wheel tires: 205/55 R 16 91 W | 245/75 R17; 265/70 R17; 265/70 R18; 265/60 R20 |
| Wheel rims size: | Front wheel rims: 7 J x 16 H 2 | 7.5J x 17; 8J x 18; 8.5J x 20 |