2004 GMC Envoy vs. 1979 Pontiac Firebird
To start off, 2004 GMC Envoy is newer by 25 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 4,942 cc (8 cylinders), 1979 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2004 GMC Envoy (275 HP) has 75 more horse power than 1979 Pontiac Firebird. (200 HP). In normal driving conditions, 2004 GMC Envoy should accelerate faster than 1979 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Envoy weights approximately 509 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 2004 GMC Envoy 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, 2004 GMC Envoy 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) has 86 more torque (in Nm) than 2004 GMC Envoy. (373 Nm). This means 1979 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2004 GMC Envoy.
Compare all specifications:
| 2004 GMC Envoy | 1979 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Envoy | Firebird |
| Year Released | 2004 | 1979 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4193 cc | 4942 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 275 HP | 200 HP |
| Torque | 373 Nm | 459 Nm |
| Engine Bore Size | 93 mm | 101.6 mm |
| Engine Stroke Size | 102 mm | 76.2 mm |
| Engine Compression Ratio | 10.0:1 | 7.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2094 kg | 1585 kg |
| Vehicle Length | 4870 mm | 4880 mm |
| Vehicle Width | 1900 mm | 1870 mm |
| Vehicle Height | 1830 mm | 1290 mm |
| Wheelbase Size | 2880 mm | 2750 mm |
