1981 BMW 520 vs. 1991 Opel Calibra
To start off, 1991 Opel Calibra is newer by 10 year(s). Which means there will be less support and parts availability for 1981 BMW 520. In addition, the cost of maintenance, including insurance, on 1981 BMW 520 would be higher. At 1,998 cc (4 cylinders), 1991 Opel Calibra is equipped with a bigger engine. In terms of performance, 1991 Opel Calibra (201 HP @ 5600 RPM) has 78 more horse power than 1981 BMW 520. (123 HP @ 5800 RPM) In normal driving conditions, 1991 Opel Calibra should accelerate faster than 1981 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Calibra weights approximately 203 kg more than 1981 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Opel Calibra is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 520. 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, 1991 Opel Calibra (280 Nm @ 2400 RPM) has 110 more torque (in Nm) than 1981 BMW 520. (170 Nm @ 4000 RPM). This means 1991 Opel Calibra will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 520.
Compare all specifications:
1981 BMW 520 | 1991 Opel Calibra | |
Make | BMW | Opel |
Model | 520 | Calibra |
Year Released | 1981 | 1991 |
Body Type | Sedan | Coupe |
Engine Position | Front | Front |
Engine Size | 1991 cc | 1998 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Horse Power | 123 HP | 201 HP |
Engine RPM | 5800 RPM | 5600 RPM |
Torque | 170 Nm | 280 Nm |
Torque RPM | 4000 RPM | 2400 RPM |
Engine Compression Ratio | 9.8:1 | 9.0:1 |
Top Speed | 185 km/hour | 241 km/hour |
Drive Type | Rear | 4WD |
Transmission Type | Manual | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1220 kg | 1423 kg |
Vehicle Length | 4630 mm | 4500 mm |
Vehicle Width | 1710 mm | 1700 mm |
Vehicle Height | 1430 mm | 1610 mm |
Wheelbase Size | 2630 mm | 2450 mm |
Fuel Tank Capacity | 70 L | 40 L |