2005 GMC Sierra vs. 1999 Pontiac Firebird
To start off, 2005 GMC Sierra is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1999 Pontiac Firebird would be higher. At 5,700 cc (8 cylinders), 1999 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (285 HP) has 137 more horse power than 1999 Pontiac Firebird. (148 HP). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1999 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 731 kg more than 1999 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 1999 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, 1999 Pontiac Firebird (454 Nm) has 54 more torque (in Nm) than 2005 GMC Sierra. (400 Nm). This means 1999 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2005 GMC Sierra.
Compare all specifications:
| 2005 GMC Sierra | 1999 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2005 | 1999 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4802 cc | 5700 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 285 HP | 148 HP |
| Torque | 400 Nm | 454 Nm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 3 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2317 kg | 1586 kg |
| Vehicle Height | 1880 mm | 1900 mm |
| Fuel Tank Capacity | 129 L | 54 L |
