1981 BMW 520 vs. 1963 Citroen Ak 350
To start off, 1981 BMW 520 is newer by 18 year(s). Which means there will be less support and parts availability for 1963 Citroen Ak 350. In addition, the cost of maintenance, including insurance, on 1963 Citroen Ak 350 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 101 more horse power than 1963 Citroen Ak 350. (22 HP @ 4500 RPM). In normal driving conditions, 1981 BMW 520 should accelerate faster than 1963 Citroen Ak 350. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 520 weights approximately 615 kg more than 1963 Citroen Ak 350. 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 520 (170 Nm @ 4000 RPM) has 129 more torque (in Nm) than 1963 Citroen Ak 350. (41 Nm @ 2800 RPM). This means 1981 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1963 Citroen Ak 350.
Compare all specifications:
| 1981 BMW 520 | 1963 Citroen Ak 350 | |
| Make | BMW | Citroen |
| Model | 520 | Ak 350 |
| Year Released | 1981 | 1963 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 602 cc |
| Engine Cylinders | 6 cylinders | 2 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 22 HP |
| Engine RPM | 5800 RPM | 4500 RPM |
| Torque | 170 Nm | 41 Nm |
| Torque RPM | 4000 RPM | 2800 RPM |
| Engine Bore Size | 80 mm | 74 mm |
| Engine Stroke Size | 66 mm | 70 mm |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1220 kg | 605 kg |
| Vehicle Length | 4630 mm | 3610 mm |
| Vehicle Width | 1710 mm | 1490 mm |
| Vehicle Height | 1430 mm | 1710 mm |
| Wheelbase Size | 2630 mm | 2410 mm |
