2009 Cadillac STS vs. 2008 Opel Vectra
To start off, 2009 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2008 Opel Vectra would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (320 HP @ 6400 RPM) has 112 more horse power than 2008 Opel Vectra. (208 HP @ 6200 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2008 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Vectra weights approximately 65 kg more than 2009 Cadillac STS.
Because 2009 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 2009 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2008 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, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 127 more torque (in Nm) than 2008 Opel Vectra. (300 Nm @ 4000 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Vectra. 2009 Cadillac STS has automatic transmission and 2008 Opel Vectra has manual transmission. 2008 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Cadillac STS | 2008 Opel Vectra | |
| Make | Cadillac | Opel |
| Model | STS | Vectra |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3174 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 208 HP |
| Engine RPM | 6400 RPM | 6200 RPM |
| Torque | 427 Nm | 300 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Engine Compression Ratio | 10.2:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1625 kg |
| Vehicle Length | 5000 mm | 4600 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2960 mm | 2710 mm |
| Fuel Consumption Overall | 13.1 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 64 L | 61 L |
