2008 GMC Sierra vs. 1977 Pontiac Firebird
To start off, 2008 GMC Sierra is newer by 31 year(s). Which means there will be less support and parts availability for 1977 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1977 Pontiac Firebird would be higher. At 5,999 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (353 HP @ 5400 RPM) has 228 more horse power than 1977 Pontiac Firebird. (125 HP @ 3200 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 1977 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 1194 kg more than 1977 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1977 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 GMC Sierra (506 Nm @ 4400 RPM) has 174 more torque (in Nm) than 1977 Pontiac Firebird. (332 Nm @ 2000 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1977 Pontiac Firebird.
Compare all specifications:
| 2008 GMC Sierra | 1977 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2008 | 1977 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 3790 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 353 HP | 125 HP |
| Engine RPM | 5400 RPM | 3200 RPM |
| Torque | 506 Nm | 332 Nm |
| Torque RPM | 4400 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 3 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2664 kg | 1470 kg |
| Vehicle Length | 5710 mm | 4880 mm |
| Vehicle Width | 2040 mm | 1870 mm |
| Vehicle Height | 1940 mm | 1290 mm |
| Wheelbase Size | 3380 mm | 2750 mm |
