2004 Pontiac Grand Prix vs. 1990 Pontiac Trans Am
To start off, 2004 Pontiac Grand Prix is newer by 14 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, 2004 Pontiac Grand Prix (290 HP) has 55 more horse power than 1990 Pontiac Trans Am. (235 HP). In normal driving conditions, 2004 Pontiac Grand Prix should accelerate faster than 1990 Pontiac Trans Am. With that said, vehicle weight also plays an important factor in acceleration. 2004 Pontiac Grand Prix weights approximately 4 kg more than 1990 Pontiac Trans Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1990 Pontiac Trans Am is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1990 Pontiac Trans Am. However, in wet, icy, snow, or gravel driving conditions, 2004 Pontiac Grand Prix, being front wheel drive (FWD), will offer much better control with better grip. 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 6 more torque (in Nm) than 2004 Pontiac Grand Prix. (441 Nm). This means 1990 Pontiac Trans Am will have an easier job in driving up hills or pulling heavy equipment than 2004 Pontiac Grand Prix.
Compare all specifications:
| 2004 Pontiac Grand Prix | 1990 Pontiac Trans Am | |
| Make | Pontiac | Pontiac |
| Model | Grand Prix | Trans Am |
| Year Released | 2004 | 1990 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5326 cc | 5733 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 290 HP | 235 HP |
| Torque | 441 Nm | 447 Nm |
| Engine Compression Ratio | 10.0:1 | 8.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1685 kg | 1681 kg |
| Vehicle Length | 5060 mm | 4840 mm |
| Vehicle Width | 1880 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1270 mm |
| Wheelbase Size | 2760 mm | 2570 mm |
