2006 GMC Sierra vs. 1985 Pontiac Firebird
To start off, 2006 GMC Sierra is newer by 21 year(s). Which means there will be less support and parts availability for 1985 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1985 Pontiac Firebird would be higher. At 5,965 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (300 HP @ 4400 RPM) has 165 more horse power than 1985 Pontiac Firebird. (135 HP @ 5100 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 1985 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1251 kg more than 1985 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1985 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 GMC Sierra (489 Nm @ 4000 RPM) has 266 more torque (in Nm) than 1985 Pontiac Firebird. (223 Nm @ 3600 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1985 Pontiac Firebird.
Compare all specifications:
| 2006 GMC Sierra | 1985 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2006 | 1985 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 2838 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 300 HP | 135 HP |
| Engine RPM | 4400 RPM | 5100 RPM |
| Torque | 489 Nm | 223 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Drive Type | 4WD | Rear |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2613 kg | 1362 kg |
| Vehicle Length | 6570 mm | 4850 mm |
| Vehicle Width | 2030 mm | 1850 mm |
| Vehicle Height | 1970 mm | 1270 mm |
| Wheelbase Size | 4250 mm | 2570 mm |
| Fuel Tank Capacity | 129 L | 60 L |
