1981 BMW 725 vs. 1978 Fiat 133
To start off, 1981 BMW 725 is newer by 3 year(s). Which means there will be less support and parts availability for 1978 Fiat 133. In addition, the cost of maintenance, including insurance, on 1978 Fiat 133 would be higher. At 2,493 cc (6 cylinders), 1981 BMW 725 is equipped with a bigger engine. In terms of performance, 1981 BMW 725 (148 HP @ 5500 RPM) has 115 more horse power than 1978 Fiat 133. (33 HP @ 4800 RPM). In normal driving conditions, 1981 BMW 725 should accelerate faster than 1978 Fiat 133.
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 725 (215 Nm @ 4000 RPM) has 161 more torque (in Nm) than 1978 Fiat 133. (54 Nm @ 3200 RPM). This means 1981 BMW 725 will have an easier job in driving up hills or pulling heavy equipment than 1978 Fiat 133.
Compare all specifications:
| 1981 BMW 725 | 1978 Fiat 133 | |
| Make | BMW | Fiat |
| Model | 725 | 133 |
| Year Released | 1981 | 1978 |
| Engine Position | Front | Rear |
| Engine Size | 2493 cc | 842 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 33 HP |
| Engine RPM | 5500 RPM | 4800 RPM |
| Torque | 215 Nm | 54 Nm |
| Torque RPM | 4000 RPM | 3200 RPM |
| Engine Bore Size | 86 mm | 65 mm |
| Engine Stroke Size | 71.6 mm | 68 mm |
| Engine Compression Ratio | 9.6:1 | 7.9:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4870 mm | 3460 mm |
| Vehicle Width | 1810 mm | 1430 mm |
| Vehicle Height | 1440 mm | 1330 mm |
| Wheelbase Size | 2810 mm | 2030 mm |
