2006 Cadillac STS vs. 2009 Opel Astra
To start off, 2009 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (253 HP @ 6500 RPM) has 115 more horse power than 2009 Opel Astra. (138 HP @ 6300 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2009 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 552 kg more than 2009 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 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 2006 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2009 Opel Astra, 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, 2006 Cadillac STS (342 Nm @ 3200 RPM) has 166 more torque (in Nm) than 2009 Opel Astra. (176 Nm @ 3800 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2009 Opel Astra. 2006 Cadillac STS has automatic transmission and 2009 Opel Astra has manual transmission. 2009 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Cadillac STS | 2009 Opel Astra | |
| Make | Cadillac | Opel |
| Model | STS | Astra |
| Year Released | 2006 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 253 HP | 138 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 342 Nm | 176 Nm |
| Torque RPM | 3200 RPM | 3800 RPM |
| Engine Bore Size | 94 mm | 80.5 mm |
| Engine Stroke Size | 85.6 mm | 88.2 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 7.4 seconds | 10.2 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1782 kg | 1230 kg |
| Vehicle Length | 4990 mm | 4480 mm |
| Vehicle Width | 1850 mm | 2030 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2960 mm | 2620 mm |
| Fuel Consumption Overall | 12.4 L/100km | 6.2 L/100km |
| Fuel Tank Capacity | 66 L | 52 L |
