2009 Cadillac STS vs. 1998 Opel Astra
To start off, 2009 Cadillac STS is newer by 11 year(s). Which means there will be less support and parts availability for 1998 Opel Astra. In addition, the cost of maintenance, including insurance, on 1998 Opel Astra 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 (321 HP @ 6400 RPM) has 207 more horse power than 1998 Opel Astra. (114 HP @ 5400 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 620 kg more than 1998 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 1998 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2009 Cadillac STS will offer significantly more control. 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 257 more torque (in Nm) than 1998 Opel Astra. (170 Nm @ 3600 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra. 2009 Cadillac STS has automatic transmission and 1998 Opel Astra has manual transmission. 1998 Opel Astra 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 | 1998 Opel Astra | |
| Make | Cadillac | Opel |
| Model | STS | Astra |
| Year Released | 2009 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 1796 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 114 HP |
| Engine RPM | 6400 RPM | 5400 RPM |
| Torque | 427 Nm | 170 Nm |
| Torque RPM | 4400 RPM | 3600 RPM |
| Engine Bore Size | 93 mm | 80.6 mm |
| Engine Stroke Size | 84 mm | 88.2 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1820 kg | 1200 kg |
| Vehicle Length | 4990 mm | 4060 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2960 mm | 2620 mm |
