2003 Mercedes-Benz SLK 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 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz SLK would be higher. Both 2003 Mercedes-Benz SLK and 2005 Opel Speedster are equipped with a 1,998 cc engine. In terms of performance, 2005 Opel Speedster (197 HP @ 5500 RPM) has 36 more horse power than 2003 Mercedes-Benz SLK. (161 HP @ 5300 RPM) In normal driving conditions, 2005 Opel Speedster should accelerate faster than 2003 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz SLK weights approximately 285 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 17 more torque (in Nm) than 2003 Mercedes-Benz SLK. (234 Nm @ 2500 RPM). This means 2005 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 2003 Mercedes-Benz SLK.
Compare all specifications:
| 2003 Mercedes-Benz SLK | 2005 Opel Speedster | |
| Make | Mercedes-Benz | Opel |
| Model | SLK | Speedster |
| Year Released | 2003 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 1998 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 161 HP | 197 HP |
| Engine RPM | 5300 RPM | 5500 RPM |
| Torque | 234 Nm | 251 Nm |
| Torque RPM | 2500 RPM | 1950 RPM |
| Engine Bore Size | 89.9 mm | 86 mm |
| Engine Stroke Size | 78.7 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1290 kg | 1005 kg |
| Vehicle Length | 4020 mm | 3790 mm |
| Vehicle Width | 1720 mm | 1710 mm |
| Vehicle Height | 1280 mm | 1120 mm |
| Wheelbase Size | 2410 mm | 2340 mm |
| Fuel Tank Capacity | 70 L | 36 L |
