2008 Cadillac STS vs. 2004 Opel Vectra
To start off, 2008 Cadillac STS is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2004 Opel Vectra would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (321 HP @ 6400 RPM) has 113 more horse power than 2004 Opel Vectra. (208 HP @ 6200 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2004 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 289 kg more than 2004 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Cadillac STS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2008 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2004 Opel Vectra, being front wheel drive (FWD), will offer much better control with better grip. 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 (427 Nm @ 4400 RPM) has 127 more torque (in Nm) than 2004 Opel Vectra. (300 Nm @ 4000 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Vectra.
Compare all specifications:
| 2008 Cadillac STS | 2004 Opel Vectra | |
| Make | Cadillac | Opel |
| Model | STS | Vectra |
| Year Released | 2008 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3175 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 208 HP |
| Engine RPM | 6400 RPM | 6200 RPM |
| Torque | 427 Nm | 300 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 87.5 mm |
| Engine Stroke Size | 84 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 248 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 7.8 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1812 kg | 1523 kg |
| Vehicle Length | 4990 mm | 4600 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2960 mm | 2500 mm |
| Fuel Tank Capacity | 66 L | 61 L |
