2004 Buick Century vs. 1991 Opel Astra
To start off, 2004 Buick Century is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 3,134 cc (6 cylinders), 2004 Buick Century is equipped with a bigger engine. In terms of performance, 2004 Buick Century (176 HP @ 5200 RPM) has 120 more horse power than 1991 Opel Astra. (56 HP @ 4600 RPM). In normal driving conditions, 2004 Buick Century should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Buick Century weights approximately 495 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2004 Buick Century (264 Nm @ 4000 RPM) has 159 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 RPM). This means 2004 Buick Century will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra. 2004 Buick Century has automatic transmission and 1991 Opel Astra has manual transmission. 1991 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Buick Century will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Buick Century | 1991 Opel Astra | |
| Make | Buick | Opel |
| Model | Century | Astra |
| Year Released | 2004 | 1991 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3134 cc | 1700 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 176 HP | 56 HP |
| Engine RPM | 5200 RPM | 4600 RPM |
| Torque | 264 Nm | 105 Nm |
| Torque RPM | 4000 RPM | 2400 RPM |
| Engine Bore Size | 89 mm | 82.5 mm |
| Engine Stroke Size | 84 mm | 79.5 mm |
| Engine Compression Ratio | 9.6:1 | 23.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1520 kg | 1025 kg |
| Vehicle Length | 4950 mm | 4280 mm |
| Vehicle Width | 1850 mm | 1690 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2780 mm | 2640 mm |
| Fuel Tank Capacity | 64 L | 75 L |
