2009 Cadillac STS vs. 1999 Opel Speedster
To start off, 2009 Cadillac STS is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Opel Speedster. In addition, the cost of maintenance, including insurance, on 1999 Opel Speedster would be higher. At 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 155 more horse power than 1999 Opel Speedster. (147 HP @ 5800 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1999 Opel Speedster. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 690 kg more than 1999 Opel Speedster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 (369 Nm @ 5200 RPM) has 167 more torque (in Nm) than 1999 Opel Speedster. (202 Nm @ 4000 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Speedster. 2009 Cadillac STS has automatic transmission and 1999 Opel Speedster has manual transmission. 1999 Opel Speedster 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 | 1999 Opel Speedster | |
| Make | Cadillac | Opel |
| Model | STS | Speedster |
| Year Released | 2009 | 1999 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 3599 cc | 2199 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 147 HP |
| Engine RPM | 6300 RPM | 5800 RPM |
| Torque | 369 Nm | 202 Nm |
| Torque RPM | 5200 RPM | 4000 RPM |
| Engine Compression Ratio | 11.3:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1635 kg | 945 kg |
| Vehicle Length | 5000 mm | 3790 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1120 mm |
| Wheelbase Size | 2960 mm | 2340 mm |
| Fuel Tank Capacity | 64 L | 52 L |
