1981 Pontiac Grand Prix vs. 1990 Pontiac Trans Am
To start off, 1990 Pontiac Trans Am is newer by 9 year(s). Which means there will be less support and parts availability for 1981 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 1981 Pontiac Grand Prix would be higher. At 5,733 cc (8 cylinders), 1990 Pontiac Trans Am is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 1990 Pontiac Trans Am weights approximately 221 kg more than 1981 Pontiac Grand Prix.
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.
Compare all specifications:
| 1981 Pontiac Grand Prix | 1990 Pontiac Trans Am | |
| Make | Pontiac | Pontiac |
| Model | Grand Prix | Trans Am |
| Year Released | 1981 | 1990 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4953 cc | 5733 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 0 HP | 235 HP |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1460 kg | 1681 kg |
| Vehicle Length | 5120 mm | 4840 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1360 mm | 1270 mm |
| Wheelbase Size | 2750 mm | 2570 mm |
