1990 Pontiac Grand Am vs. 1989 Pontiac Grand Prix
To start off, 1990 Pontiac Grand Am is newer by 1 year(s). Which means there will be less support and parts availability for 1989 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 1989 Pontiac Grand Prix would be higher. At 2,260 cc (4 cylinders), 1989 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 1990 Pontiac Grand Am (163 HP @ 5600 RPM) has 5 more horse power than 1989 Pontiac Grand Prix. (158 HP @ 6200 RPM). In normal driving conditions, 1990 Pontiac Grand Am should accelerate faster than 1989 Pontiac Grand Prix. With that said, vehicle weight also plays an important factor in acceleration. 1989 Pontiac Grand Prix weights approximately 200 kg more than 1990 Pontiac Grand Am.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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 Grand Am (237 Nm @ 4000 RPM) has 34 more torque (in Nm) than 1989 Pontiac Grand Prix. (203 Nm @ 5200 RPM). This means 1990 Pontiac Grand Am will have an easier job in driving up hills or pulling heavy equipment than 1989 Pontiac Grand Prix.
Compare all specifications:
| 1990 Pontiac Grand Am | 1989 Pontiac Grand Prix | |
| Make | Pontiac | Pontiac |
| Model | Grand Am | Grand Prix |
| Year Released | 1990 | 1989 |
| Engine Position | Front | Front |
| Engine Size | 1996 cc | 2260 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | V |
| Horse Power | 163 HP | 158 HP |
| Engine RPM | 5600 RPM | 6200 RPM |
| Torque | 237 Nm | 203 Nm |
| Torque RPM | 4000 RPM | 5200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1235 kg | 1435 kg |
| Vehicle Length | 4520 mm | 4960 mm |
| Vehicle Width | 1710 mm | 1810 mm |
| Vehicle Height | 1340 mm | 1390 mm |
| Wheelbase Size | 2630 mm | 2740 mm |
| Fuel Tank Capacity | 69 L | 76 L |
