1975 BMW 315 vs. 1991 Opel Calibra
To start off, 1991 Opel Calibra is newer by 16 year(s). Which means there will be less support and parts availability for 1975 BMW 315. In addition, the cost of maintenance, including insurance, on 1975 BMW 315 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 126 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 1991 Opel Calibra should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Calibra weights approximately 413 kg more than 1975 BMW 315. 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 1975 BMW 315. 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 170 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 1991 Opel Calibra will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 1991 Opel Calibra | |
| Make | BMW | Opel |
| Model | 315 | Calibra |
| Year Released | 1975 | 1991 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 201 HP |
| Engine RPM | 5800 RPM | 5600 RPM |
| Torque | 110 Nm | 280 Nm |
| Torque RPM | 3200 RPM | 2400 RPM |
| Engine Compression Ratio | 9.5:1 | 9.0:1 |
| Top Speed | 154 km/hour | 241 km/hour |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1010 kg | 1423 kg |
| Vehicle Length | 4360 mm | 4500 mm |
| Vehicle Width | 1620 mm | 1700 mm |
| Vehicle Height | 1390 mm | 1610 mm |
| Wheelbase Size | 2510 mm | 2450 mm |
