2006 BMW 645 vs. 1972 Fiat X1-9
To start off, 2006 BMW 645 is newer by 34 year(s). Which means there will be less support and parts availability for 1972 Fiat X1-9. In addition, the cost of maintenance, including insurance, on 1972 Fiat X1-9 would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 254 more horse power than 1972 Fiat X1-9. (74 HP @ 6600 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1972 Fiat X1-9. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 956 kg more than 1972 Fiat X1-9. 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 352 more torque (in Nm) than 1972 Fiat X1-9. (98 Nm @ 3400 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1972 Fiat X1-9.
Compare all specifications:
| 2006 BMW 645 | 1972 Fiat X1-9 | |
| Make | BMW | Fiat |
| Model | 645 | X1-9 |
| Year Released | 2006 | 1972 |
| Engine Position | Front | Middle |
| Engine Size | 4398 cc | 1290 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 328 HP | 74 HP |
| Engine RPM | 6100 RPM | 6600 RPM |
| Torque | 450 Nm | 98 Nm |
| Torque RPM | 3600 RPM | 3400 RPM |
| Engine Compression Ratio | 10.0:1 | 9.2:1 |
| Top Speed | 250 km/hour | 164 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 12.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1836 kg | 880 kg |
| Vehicle Length | 4830 mm | 3840 mm |
| Vehicle Width | 1860 mm | 1580 mm |
| Vehicle Height | 1380 mm | 1180 mm |
| Wheelbase Size | 2790 mm | 2210 mm |
| Fuel Tank Capacity | 70 L | 47 L |
