2007 Cadillac STS vs. 2004 Opel Vectra
To start off, 2007 Cadillac STS is newer by 3 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), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 197 more horse power than 2004 Opel Vectra. (123 HP @ 4000 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2004 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 43 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 2007 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 2007 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 147 more torque (in Nm) than 2004 Opel Vectra. (280 Nm @ 1500 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Vectra.
Compare all specifications:
| 2007 Cadillac STS | 2004 Opel Vectra | |
| Make | Cadillac | Opel |
| Model | STS | Vectra |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2198 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 123 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 427 Nm | 280 Nm |
| Torque RPM | 4400 RPM | 1500 RPM |
| Engine Bore Size | 93 mm | 84 mm |
| Engine Stroke Size | 84 mm | 98 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1566 kg | 1523 kg |
| Vehicle Length | 4990 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2960 mm | 2620 mm |
| Fuel Tank Capacity | 64 L | 61 L |
