2007 BMW X3 vs. 1991 Opel Calibra
To start off, 2007 BMW X3 is newer by 16 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 2,979 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (260 HP @ 6600 RPM) has 145 more horse power than 1991 Opel Calibra. (115 HP @ 5200 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 1991 Opel Calibra.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear 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, 2007 BMW X3 (305 Nm @ 2750 RPM) has 131 more torque (in Nm) than 1991 Opel Calibra. (174 Nm @ 2600 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Calibra. 2007 BMW X3 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. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 1991 Opel Calibra | |
| Make | BMW | Opel |
| Model | X3 | Calibra |
| Year Released | 2007 | 1991 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 260 HP | 115 HP |
| Engine RPM | 6600 RPM | 5200 RPM |
| Torque | 305 Nm | 174 Nm |
| Torque RPM | 2750 RPM | 2600 RPM |
| Engine Bore Size | 85.1 mm | 86 mm |
| Engine Stroke Size | 87.9 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 209 km/hour | 246 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Doors | 5 doors | 2 doors |
