2008 Cadillac STS vs. 2005 Opel Vectra
To start off, 2008 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2005 Opel Vectra would be higher. At 3,564 cc (6 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (302 HP @ 6300 RPM) has 178 more horse power than 2005 Opel Vectra. (124 HP @ 3250 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2005 Opel Vectra.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2008 Cadillac STS 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, 2008 Cadillac STS (369 Nm @ 5200 RPM) has 89 more torque (in Nm) than 2005 Opel Vectra. (280 Nm @ 1500 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra.
Compare all specifications:
| 2008 Cadillac STS | 2005 Opel Vectra | |
| Make | Cadillac | Opel |
| Model | STS | Vectra |
| Year Released | 2008 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 3564 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 124 HP |
| Engine RPM | 6300 RPM | 3250 RPM |
| Torque | 369 Nm | 280 Nm |
| Torque RPM | 5200 RPM | 1500 RPM |
| Engine Bore Size | 94.1 mm | 84 mm |
| Engine Stroke Size | 85.6 mm | 98 mm |
| Engine Compression Ratio | 11.3:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 7.4 seconds | 11.1 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1560 kg | 1560 kg |
| Vehicle Length | 4990 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2960 mm | 2840 mm |
| Fuel Consumption Overall | 12.5 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
