2007 Mercedes-Benz SLK vs. 2003 Opel Vectra
To start off, 2007 Mercedes-Benz SLK is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra would be higher. At 5,441 cc (8 cylinders), 2007 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SLK (400 HP @ 5750 RPM) has 248 more horse power than 2003 Opel Vectra. (152 HP @ 5600 RPM). In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SLK weights approximately 376 kg more than 2003 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Mercedes-Benz SLK is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Mercedes-Benz SLK. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Vectra, being front wheel drive (FWD), will offer much better control with better grip. 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 Mercedes-Benz SLK (706 Nm @ 3750 RPM) has 486 more torque (in Nm) than 2003 Opel Vectra. (220 Nm @ 3800 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2007 Mercedes-Benz SLK | 2003 Opel Vectra | |
| Make | Mercedes-Benz | Opel |
| Model | SLK | Vectra |
| Year Released | 2007 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5441 cc | 2198 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 400 HP | 152 HP |
| Engine RPM | 5750 RPM | 5600 RPM |
| Torque | 706 Nm | 220 Nm |
| Torque RPM | 3750 RPM | 3800 RPM |
| Engine Bore Size | 97 mm | 86 mm |
| Engine Stroke Size | 92 mm | 94.6 mm |
| Top Speed | 280 km/hour | 208 km/hour |
| Acceleration 0-100mph | 4.5 seconds | 11 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1960 kg | 1584 kg |
| Vehicle Length | 4540 mm | 4830 mm |
| Vehicle Width | 1830 mm | 1800 mm |
| Vehicle Height | 1300 mm | 1510 mm |
| Wheelbase Size | 2570 mm | 2840 mm |
| Fuel Consumption Highway | 11.8 L/100km | 6.9 L/100km |
| Fuel Consumption Overall | 13.5 L/100km | 8.8 L/100km |
| Fuel Tank Capacity | 80 L | 60 L |
