2007 GMC Sierra vs. 1986 Pontiac Firebird
To start off, 2007 GMC Sierra is newer by 21 year(s). Which means there will be less support and parts availability for 1986 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1986 Pontiac Firebird would be higher. At 4,802 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (295 HP @ 5600 RPM) has 155 more horse power than 1986 Pontiac Firebird. (140 HP @ 5100 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1986 Pontiac Firebird.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2007 GMC Sierra (414 Nm @ 4800 RPM) has 184 more torque (in Nm) than 1986 Pontiac Firebird. (230 Nm @ 3600 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1986 Pontiac Firebird.
Compare all specifications:
| 2007 GMC Sierra | 1986 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2007 | 1986 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4802 cc | 2827 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 295 HP | 140 HP |
| Engine RPM | 5600 RPM | 5100 RPM |
| Torque | 414 Nm | 230 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Engine Bore Size | 96 mm | 88.9 mm |
| Engine Stroke Size | 83 mm | 75.9 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5850 mm | 4880 mm |
| Vehicle Width | 2040 mm | 1860 mm |
| Vehicle Height | 1880 mm | 1380 mm |
| Wheelbase Size | 3650 mm | 2580 mm |
| Fuel Tank Capacity | 98 L | 60 L |
