2007 Mercedes-Benz SLK vs. 2005 Opel Astra
To start off, 2007 Mercedes-Benz SLK is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra 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 277 more horse power than 2005 Opel Astra. (123 HP @ 5600 RPM). In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SLK weights approximately 695 kg more than 2005 Opel Astra. 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, 2005 Opel Astra, 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 536 more torque (in Nm) than 2005 Opel Astra. (170 Nm @ 3800 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra. 2007 Mercedes-Benz SLK has automatic transmission and 2005 Opel Astra has manual transmission. 2005 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz SLK will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Mercedes-Benz SLK | 2005 Opel Astra | |
| Make | Mercedes-Benz | Opel |
| Model | SLK | Astra |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5441 cc | 1795 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 400 HP | 123 HP |
| Engine RPM | 5750 RPM | 5600 RPM |
| Torque | 706 Nm | 170 Nm |
| Torque RPM | 3750 RPM | 3800 RPM |
| Engine Bore Size | 97 mm | 80.5 mm |
| Engine Stroke Size | 92 mm | 88.2 mm |
| Top Speed | 280 km/hour | 200 km/hour |
| Acceleration 0-100mph | 4.5 seconds | 10.7 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1960 kg | 1265 kg |
| Vehicle Length | 4540 mm | 4300 mm |
| Vehicle Width | 1830 mm | 1760 mm |
| Vehicle Height | 1300 mm | 1440 mm |
| Wheelbase Size | 2570 mm | 2500 mm |
| Fuel Consumption Highway | 11.8 L/100km | 6.1 L/100km |
| Fuel Consumption Overall | 13.5 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 80 L | 52 L |
