1981 BMW 525 vs. 1981 Opel Ascona
To start off, both 1981 BMW 525 and 1981 Opel Ascona were released in the same year (1981). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,495 cc (6 cylinders), 1981 BMW 525 is equipped with a bigger engine. In terms of performance, 1981 BMW 525 (148 HP @ 5500 RPM) has 34 more horse power than 1981 Opel Ascona. (114 HP @ 5800 RPM). In normal driving conditions, 1981 BMW 525 should accelerate faster than 1981 Opel Ascona. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 525 weights approximately 230 kg more than 1981 Opel Ascona. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1981 BMW 525 (215 Nm @ 4000 RPM) has 61 more torque (in Nm) than 1981 Opel Ascona. (154 Nm @ 4800 RPM). This means 1981 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1981 Opel Ascona.
Compare all specifications:
| 1981 BMW 525 | 1981 Opel Ascona | |
| Make | BMW | Opel |
| Model | 525 | Ascona |
| Year Released | 1981 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 114 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 215 Nm | 154 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Engine Compression Ratio | 9.6:1 | 9.5:1 |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1280 kg | 1050 kg |
| Vehicle Length | 4780 mm | 4380 mm |
| Vehicle Width | 1810 mm | 1680 mm |
| Vehicle Height | 1440 mm | 1400 mm |
| Wheelbase Size | 2630 mm | 2580 mm |
| Fuel Tank Capacity | 70 L | 40 L |
