Comparison Chevrolet Silverado 2500 HD IV (T1XX, facelift 2024) Crew Cab Long Bed 6.6 V8 (401 Hp) Automatic & Pontiac Grand AM Coupe (H) 2.4 i 16V SE (152 Hp) & Pontiac Firebird IV Cabrio 5.7i V8 (314 Hp)
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| Brand: | Chevrolet | Pontiac | Pontiac |
| Model: | Silverado 2500 HD | Grand AM | Firebird |
| Generation: | Silverado 2500 HD IV (T1XX, facelift 2024) Crew Cab Long Bed | Grand AM Coupe (H) | Firebird IV Cabrio |
| Engine / modification: | 6.6 V8 (401 Hp) Automatic | 2.4 i 16V SE (152 Hp) | 5.7i V8 (314 Hp) |
| Production start: | 2023 year | 1998 year | 2000 year |
| Production end: | 2002 year | 2002 year | |
| Coupe type: | Pick-up | Coupe | Cabriolet |
| Powertrain Architecture: | Internal Combustion engine | ||
| Num. of Doors: | 4 | 2 | 2 |
| Num. of seats: | 5 | 5 | 4 |
| Fuel consumption / economy - urban: | 13 l/100 km | 12.4 l/100 km | |
| Fuel consumption / economy - extra urban: | 7 l/100 km | 8.4 l/100 km | |
| Fuel consumption / economy - combined: | 10.7 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 136 l | 57 l | 63 l |
| Power: | 401 hp | 152 hp | 314 hp |
| Max power in: | 5200 rpm. | 5600 rpm. | 5200 rpm. |
| Maximum speed: | 190 km/h | 250 km/h | |
| Acceleration from 0 to 100 km/h: | 9 sec | 6 sec | |
| Torque: | 629 Nm @ 4000 rpm. | 210 Nm/4400 rpm. | 461 Nm/4000 rpm. |
| Model Engine: | L8T | ||
| Engine position: | Front, transverse | Front, longitudinal | |
| Engine displacement: | 2392 cm3 | 5665 cm3 | |
| Engine oil capacity: | 7.6 l | ||
| Coolant: | 14.6 l | ||
| Fuel System: | Multi-point injection | Multi-point injection | |
| Aspiration / Turbine: | Naturally aspirated engine | ||
| Position of cylinders: | Inline | V engine | |
| Valvetrain: | OHV | DOHC | |
| Number of cylinders: | 8 | 4 | 8 |
| Number of valves per cylinder: | 2 | 4 | 2 |
| Compression ratio: | 10.8 | 9.5 | 10.1 |
| Piston Stroke: | 98 mm | 94 mm | 92 mm |
| Cylinder Bore: | 103.25 mm | 90 mm | 99 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 4 | 4 | |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 6759 mm | 4730 mm | 4923 mm |
| Width: | 1790 mm | 1892 mm | |
| Width including mirrors: | 2079 mm | ||
| Height: | 2023 mm | 1400 mm | 1331 mm |
| Wheelbase: | 4369 mm | 2718 mm | 2568 mm |
| Front track: | 1731 mm | 1500 mm | 1542 mm |
| Rear (Back) track: | 1736 mm | 1500 mm | 1539 mm |
| Ride height(clearance): | 256 mm | ||
| Minimum volume of Luggage (trunk): | 515 l | 215 l | |
| Front suspension: | Independent torsion bar, double wishbone | The depreciated rack | The depreciated rack |
| Rear suspension: | The depreciated rack | Helical spring | |
| Max weight: | 4672 kg | ||
| Front brakes: | Ventilated discs | Ventilated discs | |
| Rear brakes: | Drum | Ventilated discs | |
| Kerb Weight: | 3056 kg | 1385 kg | 1635 kg |
| ABS: | yes | yes | |
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Hydraulic Steering | Hydraulic Steering |
| Permitted trailer load with brakes (12%): | 7257 kg | ||
| Tire size: | 245/75 R17; 265/70 R17; 275/70 R18; 275/65 R20 | 215/60 R15 | 235/55 R16 |
| Wheel rims size: | 7.5J x 17; 8J x 18; 8.5J x 20 |