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| Details | GMC - Sierra 2500HD | BMW - Z4 |
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| Brand | GMC | BMW |
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| Model | Sierra 2500HD | Z4 |
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| Generation | Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Long Bed | Z4 (G29 LCI, facelift 2022) |
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| Modification | 6.6 Duramax TD V8 (470 Hp) 4WD Automatic | M40i (340 Hp) |
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| Start Of Production | 2023 | 2024 |
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Performance
| Specs | GMC - Sierra 2500HD | BMW - Z4 |
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| Rating | | |
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Body & Dimensions
| Specs | GMC - Sierra 2500HD | BMW - Z4 |
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| Rating | | |
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| Body Type | Pick-up | Roadster |
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| Seats | 5 | 2 |
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| Doors | 4 | 2 |
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| Length | 6534 mm 257.24 in. | 4324 mm 170.24 in. |
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| Width Including Mirrors | 2079 mm 81.85 in. | 2024 mm 79.69 in. |
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| Height | 2027 mm 79.8 in. | 1303 mm 51.3 in. |
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| Wheelbase | 4127 mm 162.48 in. | 2470 mm 97.24 in. |
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| Front Track | 1731 mm 68.15 in. | 1594 mm 62.76 in. |
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| Rear Track | 1736 mm 68.35 in. | 1589 mm 62.56 in. |
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| Ride Height Ground Clearance | 257 mm 10.12 in. | 114 mm 4.49 in. |
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Fuel Consumption
| Specs | GMC - Sierra 2500HD | BMW - Z4 |
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| Rating | | |
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| Fuel Type | Diesel | Petrol (Gasoline) |
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Engine & Transmission
| Specs | GMC - Sierra 2500HD | BMW - Z4 |
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| Rating | | |
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| Powertrain Architecture | Internal Combustion engine | Internal Combustion engine |
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| Power | 470 Hp @ 2800 rpm. | 340 Hp @ 5000-6500 rpm. |
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| Power Per Litre | 71.2 Hp/l | 113.4 Hp/l |
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| Torque | 1322 Nm @ 1600 rpm. 975.06 lb.-ft. @ 1600 rpm. | 500 Nm @ 1600-4500 rpm. 368.78 lb.-ft. @ 1600-4500 rpm. |
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| Engine Layout | Front, Longitudinal | Front, Longitudinal |
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| Engine Model Code | L5P | B58 |
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| Engine Displacement | 6604 cm3 403 cu. in. | 2998 cm3 182.95 cu. in. |
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| Number Of Cylinders | 8 | 6 |
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| Engine Configuration | V-engine | Inline |
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| Cylinder Bore | 103 mm 4.06 in. | 82 mm 3.23 in. |
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| Piston Stroke | 99 mm 3.9 in. | 94.6 mm 3.72 in. |
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| Compression Ratio | 16 | 11 |
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| Number Of Valves Per Cylinder | 4 | 4 |
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| Fuel Injection System | Diesel Commonrail | Direct injection |
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| Engine Aspiration | Turbocharger, Intercooler | Twin-power turbo, Intercooler |
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| Valvetrain | OHV | VALVETRONIC, Double-VANOS |
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| Engine Oil Capacity | 9.5 l 10.04 US qt | 8.36 UK qt | 6.5 l 6.87 US qt | 5.72 UK qt |
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| Engine Oil Specification | 15W-40 / API CJ-4, API CK-4 5W-40 / API CJ-4, API CK-4 (<-18 C°) | 0W-20 / BMW Longlife-17 FE+ 0W-30 / BMW Longlife-12 FE |
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| Coolant | 28.5 l 30.12 US qt | 25.08 UK qt | None |
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| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
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| Drive Wheel | All wheel drive (4x4) | Rear wheel drive |
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| Front Suspension | Independent torsion bar, double wishbone | Spring Strut, Transverse stabilizer |
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| Rear Suspension | Rigid axle suspension, Leaf spring | Independent multi-link spring suspension with stabilizer |
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| Number Of Gears And Type Of Gearbox | 10 gears, automatic transmission Allison | 6 gears, manual transmission |
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Brakes
| Specs | GMC - Sierra 2500HD | BMW - Z4 |
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| Rating | | |
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| Front Brakes | Ventilated discs, 350x40 mm | Ventilated discs |
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| Rear Brakes | Ventilated discs, 360x34 mm | Ventilated discs |
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| Steering Type | Cone worm with recirculation balls | Steering rack and pinion |
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| Power Steering | Hydraulic Steering | Electric Steering |
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| Tires Size | 235/80 R17; 265/70 R17; 245/75 R17; 265/70 R18; 265/60 R20 | Front wheel tires: 255/35 R19 Rear wheel tires: 285/30 R20 |
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| Wheel Rims Size | 7.5J x 17; 8J x 18; 8.5J x 20 | Front wheel rims: 9J x 19 Rear wheel rims: 10J x 20 |
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| Assisting Systems | ABS (Anti-lock braking system) | ABS (Anti-lock braking system) |
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Battery - Electric / Hybrid
| Specs | GMC - Sierra 2500HD | BMW - Z4 |
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Weight & Capacity
| Specs | GMC - Sierra 2500HD | BMW - Z4 |
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| Rating | | |
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| Weight To Power Ratio | 7.4 kg/Hp, 135.5 Hp/tonne | 4.6 kg/Hp, 219.4 Hp/tonne |
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| Weight To Torque Ratio | 2.6 kg/Nm, 381.2 Nm/tonne | 3.1 kg/Nm, 322.6 Nm/tonne |
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| Kerb Weight | 3468 kg 7645.63 lbs. | 1550 kg 3417.17 lbs. |
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| Max Weight | 5080 kg 11199.48 lbs. | 1860 kg 4100.6 lbs. |
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| Max Load | 1612 kg 3553.85 lbs. | 310 kg 683.43 lbs. |
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| Fuel Tank Capacity | 136 l 35.93 US gal | 29.92 UK gal | 52 l 13.74 US gal | 11.44 UK gal |
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| Permitted Trailer Load With Brakes 12 Percent | 7983 kg 17599.5 lbs. | None |
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