2005 Opel Astra vs. 1984 Pontiac Grand Am
To start off, 2005 Opel Astra is newer by 21 year(s). Which means there will be less support and parts availability for 1984 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 1984 Pontiac Grand Am would be higher. At 2,469 cc (4 cylinders), 1984 Pontiac Grand Am is equipped with a bigger engine. In terms of performance, both vehicles can yield 89 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Astra weights approximately 185 kg more than 1984 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, 2005 Opel Astra (201 Nm @ 1750 RPM) has 22 more torque (in Nm) than 1984 Pontiac Grand Am. (179 Nm @ 2800 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1984 Pontiac Grand Am.
Compare all specifications:
| 2005 Opel Astra | 1984 Pontiac Grand Am | |
| Make | Opel | Pontiac |
| Model | Astra | Grand Am |
| Year Released | 2005 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 1686 cc | 2469 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 89 HP | 89 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 201 Nm | 179 Nm |
| Torque RPM | 1750 RPM | 2800 RPM |
| Engine Bore Size | 79 mm | 101.6 mm |
| Engine Stroke Size | 86 mm | 76.2 mm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1315 kg | 1130 kg |
| Vehicle Length | 4300 mm | 4520 mm |
| Vehicle Width | 1760 mm | 1710 mm |
| Vehicle Height | 1440 mm | 1340 mm |
| Wheelbase Size | 2640 mm | 2630 mm |
