2008 GMC Sierra vs. 1971 Pontiac Firebird
To start off, 2008 GMC Sierra is newer by 37 year(s). Which means there will be less support and parts availability for 1971 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1971 Pontiac Firebird would be higher. At 7,462 cc (8 cylinders), 1971 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (316 HP @ 5200 RPM) has 20 more horse power than 1971 Pontiac Firebird. (296 HP @ 4000 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 1971 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 909 kg more than 1971 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 1971 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, 1971 Pontiac Firebird (563 Nm @ 3200 RPM) has 105 more torque (in Nm) than 2008 GMC Sierra. (458 Nm @ 4400 RPM). This means 1971 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2008 GMC Sierra.
Compare all specifications:
| 2008 GMC Sierra | 1971 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2008 | 1971 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5300 cc | 7462 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 316 HP | 296 HP |
| Engine RPM | 5200 RPM | 4000 RPM |
| Torque | 458 Nm | 563 Nm |
| Torque RPM | 4400 RPM | 3200 RPM |
| Drive Type | 4WD | Rear |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2659 kg | 1750 kg |
| Vehicle Length | 6320 mm | 4870 mm |
| Vehicle Width | 2040 mm | 1870 mm |
| Vehicle Height | 1870 mm | 1290 mm |
| Wheelbase Size | 4010 mm | 2750 mm |
| Fuel Tank Capacity | 129 L | 76 L |
