2008 Mercedes-Benz SLK vs. 1991 Opel Calibra
To start off, 2008 Mercedes-Benz SLK is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Opel Calibra. In addition, the cost of maintenance, including insurance, on 1991 Opel Calibra would be higher. At 1,998 cc (4 cylinders), 1991 Opel Calibra is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz SLK weights approximately 200 kg more than 1991 Opel Calibra.
Because 1991 Opel Calibra is four wheel drive (4WD), it will have significant more traction and grip than 2008 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 1991 Opel Calibra will offer significantly more control. 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, 2008 Mercedes-Benz SLK (240 Nm @ 5000 RPM) has 66 more torque (in Nm) than 1991 Opel Calibra. (174 Nm @ 2600 RPM). This means 2008 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Calibra. 2008 Mercedes-Benz SLK has automatic transmission and 1991 Opel Calibra has manual transmission. 1991 Opel Calibra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Mercedes-Benz SLK will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Mercedes-Benz SLK | 1991 Opel Calibra | |
| Make | Mercedes-Benz | Opel |
| Model | SLK | Calibra |
| Year Released | 2008 | 1991 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1795 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 0 HP | 115 HP |
| Torque | 240 Nm | 174 Nm |
| Torque RPM | 5000 RPM | 2600 RPM |
| Engine Bore Size | 89.9 mm | 86 mm |
| Engine Stroke Size | 78.7 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 231 km/hour | 246 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1390 kg | 1190 kg |
| Vehicle Length | 4100 mm | 4500 mm |
| Vehicle Height | 1780 mm | 1330 mm |
| Wheelbase Size | 2440 mm | 2610 mm |
| Fuel Tank Capacity | 70 L | 75 L |
