1967 Alfa Romeo Spider vs. 1981 BMW 525
To start off, 1981 BMW 525 is newer by 14 year(s). Which means there will be less support and parts availability for 1967 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1967 Alfa Romeo Spider would be higher. At 2,582 cc (6 cylinders), 1967 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1967 Alfa Romeo Spider (163 HP @ 5900 RPM) has 15 more horse power than 1981 BMW 525. (148 HP @ 5500 RPM). In normal driving conditions, 1967 Alfa Romeo Spider should accelerate faster than 1981 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1967 Alfa Romeo Spider weights approximately 50 kg more than 1981 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1967 Alfa Romeo Spider (220 Nm @ 4000 RPM) has 5 more torque (in Nm) than 1981 BMW 525. (215 Nm @ 4000 RPM). This means 1967 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 525.
Compare all specifications:
| 1967 Alfa Romeo Spider | 1981 BMW 525 | |
| Make | Alfa Romeo | BMW |
| Model | Spider | 525 |
| Year Released | 1967 | 1981 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2582 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 163 HP | 148 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 220 Nm | 215 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 86.1 mm |
| Engine Stroke Size | 79.6 mm | 71.6 mm |
| Engine Compression Ratio | 9.0:1 | 9.6:1 |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1330 kg | 1280 kg |
| Vehicle Length | 4510 mm | 4780 mm |
| Vehicle Width | 1610 mm | 1810 mm |
| Vehicle Height | 1390 mm | 1440 mm |
| Wheelbase Size | 2510 mm | 2630 mm |
| Fuel Tank Capacity | 47 L | 70 L |
