2006 Cadillac STS vs. 2003 Opel Astra
To start off, 2006 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Astra. In addition, the cost of maintenance, including insurance, on 2003 Opel Astra 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 130 more horse power than 2003 Opel Astra. (123 HP @ 5600 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2003 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 472 kg more than 2003 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, 2003 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 171 more torque (in Nm) than 2003 Opel Astra. (171 Nm @ 3800 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra.
Compare all specifications:
| 2006 Cadillac STS | 2003 Opel Astra | |
| Make | Cadillac | Opel |
| Model | STS | Astra |
| Year Released | 2006 | 2003 |
| 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 | 123 HP |
| Engine RPM | 6500 RPM | 5600 RPM |
| Torque | 342 Nm | 171 Nm |
| Torque RPM | 3200 RPM | 3800 RPM |
| Engine Bore Size | 94 mm | 80.5 mm |
| Engine Stroke Size | 85.6 mm | 88.2 mm |
| Top Speed | 229 km/hour | 188 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 11.9 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 | 1782 kg | 1310 kg |
| Vehicle Length | 4990 mm | 4260 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2960 mm | 2700 mm |
| Fuel Consumption Highway | 8.7 L/100km | 6.5 L/100km |
| Fuel Consumption City | 13.1 L/100km | 11.6 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 66 L | 52 L |
