2004 Buick Regal vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Buick Regal. In addition, the cost of maintenance, including insurance, on 2004 Buick Regal would be higher. At 3,791 cc (6 cylinders), 2004 Buick Regal is equipped with a bigger engine. In terms of performance, 2004 Buick Regal (201 HP @ 5200 RPM) has 23 more horse power than 2007 Opel Astra. (178 HP @ 5500 RPM). In normal driving conditions, 2004 Buick Regal should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Buick Regal weights approximately 165 kg more than 2007 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 Regal (305 Nm) has 75 more torque (in Nm) than 2007 Opel Astra. (230 Nm). This means 2004 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2004 Buick Regal | 2007 Opel Astra | |
| Make | Buick | Opel |
| Model | Regal | Astra |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 201 HP | 178 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 305 Nm | 230 Nm |
| Engine Compression Ratio | 9.4:1 | 10.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1550 kg | 1385 kg |
| Vehicle Length | 4990 mm | 4300 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1440 mm | 1440 mm |
| Wheelbase Size | 2780 mm | 2620 mm |
| Fuel Consumption Highway | 7.8 L/100km | 5.4 L/100km |
| Fuel Consumption City | 11.8 L/100km | 8.6 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 64 L | 52 L |
