2007 Cadillac STS vs. 2006 Opel Astra
To start off, 2007 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Opel Astra. In addition, the cost of maintenance, including insurance, on 2006 Opel Astra 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 221 more horse power than 2006 Opel Astra. (99 HP @ 4400 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 201 kg more than 2006 Opel Astra. 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, 2006 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 187 more torque (in Nm) than 2006 Opel Astra. (240 Nm @ 2300 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra. 2007 Cadillac STS has automatic transmission and 2006 Opel Astra has manual transmission. 2006 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac STS | 2006 Opel Astra | |
| Make | Cadillac | Opel |
| Model | STS | Astra |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 1686 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 99 HP |
| Engine RPM | 6400 RPM | 4400 RPM |
| Torque | 427 Nm | 240 Nm |
| Torque RPM | 4400 RPM | 2300 RPM |
| Engine Bore Size | 93 mm | 79 mm |
| Engine Stroke Size | 84 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 18.4:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1566 kg | 1365 kg |
| Vehicle Length | 4990 mm | 4300 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2960 mm | 2620 mm |
| Fuel Consumption Highway | 8.7 L/100km | 4.2 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 5 L/100km |
| Fuel Tank Capacity | 64 L | 52 L |
