2005 GMC Sierra vs. 1981 Pontiac Firebird
To start off, 2005 GMC Sierra is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1981 Pontiac Firebird would be higher. At 5,964 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (340 HP @ 5200 RPM) has 140 more horse power than 1981 Pontiac Firebird. (200 HP @ 4000 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1981 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 729 kg more than 1981 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 1981 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, 2005 GMC Sierra (516 Nm @ 4000 RPM) has 57 more torque (in Nm) than 1981 Pontiac Firebird. (459 Nm @ 2000 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1981 Pontiac Firebird.
Compare all specifications:
2005 GMC Sierra | 1981 Pontiac Firebird | |
Make | GMC | Pontiac |
Model | Sierra | Firebird |
Year Released | 2005 | 1981 |
Body Type | Pickup | Coupe |
Engine Position | Front | Front |
Engine Size | 5964 cc | 4942 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 340 HP | 200 HP |
Engine RPM | 5200 RPM | 4000 RPM |
Torque | 516 Nm | 459 Nm |
Torque RPM | 4000 RPM | 2000 RPM |
Engine Bore Size | 102 mm | 101.6 mm |
Engine Stroke Size | 92 mm | 76.2 mm |
Fuel Type | Gasoline | Gasoline |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 4 seats |
Vehicle Weight | 2345 kg | 1616 kg |
Vehicle Length | 5740 mm | 5040 mm |
Vehicle Width | 2000 mm | 1860 mm |
Vehicle Height | 1910 mm | 1260 mm |
Wheelbase Size | 3650 mm | 2750 mm |