2005 GMC Sierra vs. 1990 Pontiac Firebird
To start off, 2005 GMC Sierra is newer by 15 year(s). Which means there will be less support and parts availability for 1990 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1990 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 86 more horse power than 1990 Pontiac Firebird. (235 HP @ 4400 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1990 Pontiac Firebird.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1990 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, 1990 Pontiac Firebird (447 Nm @ 3200 RPM) has 77 more torque (in Nm) than 2005 GMC Sierra. (370 Nm @ 4000 RPM). This means 1990 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 | 1990 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2005 | 1990 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 5733 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 321 HP | 235 HP |
| Engine RPM | 5000 RPM | 4400 RPM |
| Torque | 370 Nm | 447 Nm |
| Torque RPM | 4000 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5790 mm | 4840 mm |
| Vehicle Width | 2000 mm | 1850 mm |
| Vehicle Height | 1850 mm | 1270 mm |
| Wheelbase Size | 3650 mm | 2570 mm |
| Fuel Tank Capacity | 117 L | 76 L |
