2005 GMC Sierra vs. 2001 Pontiac Firebird
To start off, 2005 GMC Sierra is newer by 4 year(s). Which means there will be less support and parts availability for 2001 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 2001 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 11 more horse power than 2001 Pontiac Firebird. (310 HP @ 5200 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2001 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 729 kg more than 2001 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 2001 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, 2001 Pontiac Firebird (461 Nm @ 4000 RPM) has 91 more torque (in Nm) than 2005 GMC Sierra. (370 Nm @ 4000 RPM). This means 2001 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2005 GMC Sierra. 2005 GMC Sierra has automatic transmission and 2001 Pontiac Firebird has manual transmission. 2001 Pontiac Firebird will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 GMC Sierra | 2001 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2005 | 2001 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 5698 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 321 HP | 310 HP |
| Engine RPM | 5000 RPM | 5200 RPM |
| Torque | 370 Nm | 461 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2270 kg | 1541 kg |
| Vehicle Length | 5790 mm | 4930 mm |
| Vehicle Width | 2000 mm | 1900 mm |
| Vehicle Height | 1850 mm | 1310 mm |
| Wheelbase Size | 3650 mm | 2570 mm |
