1981 BMW 520 vs. 1968 Innocenti IM 3
To start off, 1981 BMW 520 is newer by 13 year(s). Which means there will be less support and parts availability for 1968 Innocenti IM 3. In addition, the cost of maintenance, including insurance, on 1968 Innocenti IM 3 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 67 more horse power than 1968 Innocenti IM 3. (56 HP @ 5500 RPM). In normal driving conditions, 1981 BMW 520 should accelerate faster than 1968 Innocenti IM 3. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 520 weights approximately 330 kg more than 1968 Innocenti IM 3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1981 BMW 520 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1981 BMW 520. However, in wet, icy, snow, or gravel driving conditions, 1968 Innocenti IM 3, being front wheel drive (FWD), will offer much better control with better grip. 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 86 more torque (in Nm) than 1968 Innocenti IM 3. (84 Nm @ 2500 RPM). This means 1981 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1968 Innocenti IM 3.
Compare all specifications:
| 1981 BMW 520 | 1968 Innocenti IM 3 | |
| Make | BMW | Innocenti |
| Model | 520 | IM 3 |
| Year Released | 1981 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 1096 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 56 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 170 Nm | 84 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 80 mm | 64.6 mm |
| Engine Stroke Size | 66 mm | 83.7 mm |
| Engine Compression Ratio | 9.8:1 | 9.0:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1220 kg | 890 kg |
| Vehicle Length | 4630 mm | 3760 mm |
| Vehicle Width | 1710 mm | 1570 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2630 mm | 2380 mm |
| Fuel Tank Capacity | 70 L | 40 L |
