1971 BMW 3 vs. 1993 Opel Calibra
To start off, 1993 Opel Calibra is newer by 22 year(s). Which means there will be less support and parts availability for 1971 BMW 3. In addition, the cost of maintenance, including insurance, on 1971 BMW 3 would be higher. At 2,986 cc (6 cylinders), 1971 BMW 3 is equipped with a bigger engine. In terms of performance, 1971 BMW 3 (170 HP @ 6000 RPM) has 55 more horse power than 1993 Opel Calibra. (115 HP @ 5200 RPM). In normal driving conditions, 1971 BMW 3 should accelerate faster than 1993 Opel Calibra. With that said, vehicle weight also plays an important factor in acceleration. 1971 BMW 3 weights approximately 186 kg more than 1993 Opel Calibra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1971 BMW 3 (254 Nm @ 3700 RPM) has 81 more torque (in Nm) than 1993 Opel Calibra. (173 Nm @ 2600 RPM). This means 1971 BMW 3 will have an easier job in driving up hills or pulling heavy equipment than 1993 Opel Calibra.
Compare all specifications:
| 1971 BMW 3 | 1993 Opel Calibra | |
| Make | BMW | Opel |
| Model | 3 | Calibra |
| Year Released | 1971 | 1993 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 170 HP | 115 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 254 Nm | 173 Nm |
| Torque RPM | 3700 RPM | 2600 RPM |
| Engine Bore Size | 89 mm | 86 mm |
| Engine Stroke Size | 80 mm | 86 mm |
| Engine Compression Ratio | 9.1:1 | 9.2:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1380 kg | 1194 kg |
| Vehicle Length | 4720 mm | 4500 mm |
| Vehicle Width | 1760 mm | 1700 mm |
| Vehicle Height | 1460 mm | 1610 mm |
| Wheelbase Size | 2700 mm | 2610 mm |
