2007 Cadillac STS vs. 2007 Opel Speedster
To start off, both 2007 Cadillac STS and 2007 Opel Speedster were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,556 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (255 HP @ 6500 RPM) has 58 more horse power than 2007 Opel Speedster. (197 HP @ 5500 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2007 Opel Speedster.
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, 2007 Cadillac STS (342 Nm @ 3200 RPM) has 92 more torque (in Nm) than 2007 Opel Speedster. (250 Nm @ 1950 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Speedster. 2007 Cadillac STS has automatic transmission and 2007 Opel Speedster has manual transmission. 2007 Opel Speedster 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 | 2007 Opel Speedster | |
| Make | Cadillac | Opel |
| Model | STS | Speedster |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 3556 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 197 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 342 Nm | 250 Nm |
| Torque RPM | 3200 RPM | 1950 RPM |
| Engine Bore Size | 94 mm | 86 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Engine Compression Ratio | 10.2:1 | 8.8:1 |
| Fuel Type | Gasoline - Premium | 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 Length | 4990 mm | 3790 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1120 mm |
| Wheelbase Size | 2960 mm | 2340 mm |
| Fuel Consumption Overall | 11.2 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 64 L | 36 L |
