1966 Alfa Romeo GT vs. 1981 BMW 520
To start off, 1981 BMW 520 is newer by 15 year(s). Which means there will be less support and parts availability for 1966 Alfa Romeo GT. In addition, the cost of maintenance, including insurance, on 1966 Alfa Romeo GT would be higher. At 1,991 cc (6 cylinders), 1981 BMW 520 is equipped with a bigger engine. In terms of performance, 1981 BMW 520 (123 HP @ 5800 RPM) has 19 more horse power than 1966 Alfa Romeo GT. (104 HP @ 6000 RPM) In normal driving conditions, 1981 BMW 520 should accelerate faster than 1966 Alfa Romeo GT. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 520 weights approximately 290 kg more than 1966 Alfa Romeo GT. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1981 BMW 520 (170 Nm @ 4000 RPM) has 33 more torque (in Nm) than 1966 Alfa Romeo GT. (137 Nm @ 3200 RPM). This means 1981 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1966 Alfa Romeo GT.
Compare all specifications:
| 1966 Alfa Romeo GT | 1981 BMW 520 | |
| Make | Alfa Romeo | BMW |
| Model | GT | 520 |
| Year Released | 1966 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1290 cc | 1991 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 123 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 137 Nm | 170 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 74 mm | 80 mm |
| Engine Stroke Size | 75 mm | 66 mm |
| Engine Compression Ratio | 9.0:1 | 9.8:1 |
| Top Speed | 170 km/hour | 185 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1220 kg |
| Vehicle Length | 4090 mm | 4630 mm |
| Vehicle Width | 1590 mm | 1710 mm |
| Vehicle Height | 1320 mm | 1430 mm |
| Wheelbase Size | 2360 mm | 2630 mm |
| Fuel Tank Capacity | 46 L | 70 L |
