2009 GMC Sierra vs. 1990 Pontiac Trans Am
To start off, 2009 GMC Sierra is newer by 19 year(s). Which means there will be less support and parts availability for 1990 Pontiac Trans Am. In addition, the cost of maintenance, including insurance, on 1990 Pontiac Trans Am would be higher. At 5,733 cc (8 cylinders), 1990 Pontiac Trans Am is equipped with a bigger engine. In terms of performance, 1990 Pontiac Trans Am (235 HP) has 43 more horse power than 2009 GMC Sierra. (192 HP) In normal driving conditions, 1990 Pontiac Trans Am should accelerate faster than 2009 GMC Sierra.
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, 1990 Pontiac Trans Am (447 Nm) has 187 more torque (in Nm) than 2009 GMC Sierra. (260 Nm). This means 1990 Pontiac Trans Am will have an easier job in driving up hills or pulling heavy equipment than 2009 GMC Sierra.
Compare all specifications:
| 2009 GMC Sierra | 1990 Pontiac Trans Am | |
| Make | GMC | Pontiac |
| Model | Sierra | Trans Am |
| Year Released | 2009 | 1990 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4300 cc | 5733 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 192 HP | 235 HP |
| Torque | 260 Nm | 447 Nm |
| Engine Compression Ratio | 9.2:1 | 8.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 3 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 5140 mm | 4840 mm |
| Vehicle Width | 2040 mm | 1850 mm |
| Vehicle Height | 1880 mm | 1270 mm |
| Wheelbase Size | 3030 mm | 2570 mm |
