2004 Buick Regal vs. 2010 Opel Insignia
To start off, 2010 Opel Insignia is newer by 6 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, 2010 Opel Insignia (321 HP @ 5500 RPM) has 120 more horse power than 2004 Buick Regal. (201 HP @ 5200 RPM) In normal driving conditions, 2010 Opel Insignia should accelerate faster than 2004 Buick Regal.
Because 2010 Opel Insignia is four wheel drive (4WD), it will have significant more traction and grip than 2004 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2010 Opel Insignia will offer significantly more control. 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, 2010 Opel Insignia (435 Nm) has 130 more torque (in Nm) than 2004 Buick Regal. (305 Nm). This means 2010 Opel Insignia will have an easier job in driving up hills or pulling heavy equipment than 2004 Buick Regal.
Compare all specifications:
| 2004 Buick Regal | 2010 Opel Insignia | |
| Make | Buick | Opel |
| Model | Regal | Insignia |
| Year Released | 2004 | 2010 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2792 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 201 HP | 321 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 305 Nm | 435 Nm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4990 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1856 mm |
| Vehicle Height | 1440 mm | 1498 mm |
| Wheelbase Size | 2780 mm | 2737 mm |
