2005 Buick Regal vs. 2002 Opel Vectra
To start off, 2005 Buick Regal is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2002 Opel Vectra would be higher. At 3,791 cc (6 cylinders), 2005 Buick Regal is equipped with a bigger engine. In terms of performance, 2005 Buick Regal (197 HP @ 5200 RPM) has 98 more horse power than 2002 Opel Vectra. (99 HP @ 4400 RPM). In normal driving conditions, 2005 Buick Regal should accelerate faster than 2002 Opel Vectra.
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 Buick Regal (311 Nm @ 4000 RPM) has 60 more torque (in Nm) than 2002 Opel Vectra. (251 Nm @ 1500 RPM). This means 2005 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Vectra. 2005 Buick Regal has automatic transmission and 2002 Opel Vectra has manual transmission. 2002 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Buick Regal will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Buick Regal | 2002 Opel Vectra | |
| Make | Buick | Opel |
| Model | Regal | Vectra |
| Year Released | 2005 | 2002 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 99 HP |
| Engine RPM | 5200 RPM | 4400 RPM |
| Torque | 311 Nm | 251 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Engine Bore Size | 97 mm | 84 mm |
| Engine Stroke Size | 86 mm | 90 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4990 mm | 4600 mm |
| Vehicle Width | 1850 mm | 1770 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2780 mm | 2710 mm |
| Fuel Tank Capacity | 64 L | 61 L |
