2005 GMC Sierra vs. 1979 Pontiac Firebird
To start off, 2005 GMC Sierra is newer by 26 year(s). Which means there will be less support and parts availability for 1979 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1979 Pontiac Firebird would be higher. At 5,965 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (321 HP @ 5000 RPM) has 121 more horse power than 1979 Pontiac Firebird. (200 HP @ 4000 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1979 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 645 kg more than 1979 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1979 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2005 GMC Sierra will offer significantly more control. 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, 1979 Pontiac Firebird (459 Nm @ 2000 RPM) has 89 more torque (in Nm) than 2005 GMC Sierra. (370 Nm @ 4000 RPM). This means 1979 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2005 GMC Sierra.
Compare all specifications:
| 2005 GMC Sierra | 1979 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2005 | 1979 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 4942 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 321 HP | 200 HP |
| Engine RPM | 5000 RPM | 4000 RPM |
| Torque | 370 Nm | 459 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2270 kg | 1625 kg |
| Vehicle Length | 5790 mm | 5010 mm |
| Vehicle Width | 2000 mm | 1860 mm |
| Vehicle Height | 1850 mm | 1260 mm |
| Wheelbase Size | 3650 mm | 2750 mm |
