2005 GMC Sierra vs. 1978 Pontiac Firebird
To start off, 2005 GMC Sierra is newer by 27 year(s). Which means there will be less support and parts availability for 1978 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1978 Pontiac Firebird would be higher. At 5,359 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (295 HP) has 150 more horse power than 1978 Pontiac Firebird. (145 HP). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1978 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 719 kg more than 1978 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 GMC Sierra (454 Nm) has 130 more torque (in Nm) than 1978 Pontiac Firebird. (324 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 Pontiac Firebird.
Compare all specifications:
| 2005 GMC Sierra | 1978 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2005 | 1978 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5359 cc | 5012 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 295 HP | 145 HP |
| Torque | 454 Nm | 324 Nm |
| Engine Compression Ratio | 9.5:1 | 8.6:1 |
| Fuel Type | Gasoline / Electric Hybrid | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2315 kg | 1596 kg |
| Vehicle Length | 5850 mm | 4880 mm |
| Vehicle Width | 2000 mm | 1870 mm |
| Vehicle Height | 1810 mm | 1290 mm |
| Wheelbase Size | 3650 mm | 2750 mm |
| Fuel Tank Capacity | 98 L | 76 L |
