2003 Cadillac CTS vs. 2005 Opel Speedster
To start off, 2005 Opel Speedster is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Cadillac CTS. In addition, the cost of maintenance, including insurance, on 2003 Cadillac CTS would be higher. At 2,597 cc (6 cylinders), 2003 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2005 Opel Speedster (197 HP @ 5500 RPM) has 18 more horse power than 2003 Cadillac CTS. (179 HP @ 6000 RPM) In normal driving conditions, 2005 Opel Speedster should accelerate faster than 2003 Cadillac CTS. With that said, vehicle weight also plays an important factor in acceleration. 2003 Cadillac CTS weights approximately 615 kg more than 2005 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, 2005 Opel Speedster (251 Nm @ 1950 RPM) has 6 more torque (in Nm) than 2003 Cadillac CTS. (245 Nm @ 3400 RPM). This means 2005 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 2003 Cadillac CTS.
Compare all specifications:
| 2003 Cadillac CTS | 2005 Opel Speedster | |
| Make | Cadillac | Opel |
| Model | CTS | Speedster |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 2597 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 179 HP | 197 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 245 Nm | 251 Nm |
| Torque RPM | 3400 RPM | 1950 RPM |
| Engine Bore Size | 83.3 mm | 86 mm |
| Engine Stroke Size | 79.6 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1620 kg | 1005 kg |
| Vehicle Length | 4840 mm | 3790 mm |
| Vehicle Width | 1800 mm | 1710 mm |
| Vehicle Height | 1450 mm | 1120 mm |
| Wheelbase Size | 2890 mm | 2340 mm |
| Fuel Tank Capacity | 64 L | 36 L |
