2006 BMW 645 vs. 1990 Alfa Romeo 164
To start off, 2006 BMW 645 is newer by 16 year(s). Which means there will be less support and parts availability for 1990 Alfa Romeo 164. In addition, the cost of maintenance, including insurance, on 1990 Alfa Romeo 164 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 205 more horse power than 1990 Alfa Romeo 164. (123 HP @ 4200 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1990 Alfa Romeo 164. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 346 kg more than 1990 Alfa Romeo 164. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 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 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 1990 Alfa Romeo 164, 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 156 more torque (in Nm) than 1990 Alfa Romeo 164. (294 Nm @ 2000 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1990 Alfa Romeo 164.
Compare all specifications:
| 2006 BMW 645 | 1990 Alfa Romeo 164 | |
| Make | BMW | Alfa Romeo |
| Model | 645 | 164 |
| Year Released | 2006 | 1990 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2500 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 328 HP | 123 HP |
| Engine RPM | 6100 RPM | 4200 RPM |
| Torque | 450 Nm | 294 Nm |
| Torque RPM | 3600 RPM | 2000 RPM |
| Engine Compression Ratio | 10.0:1 | 22.0:1 |
| Top Speed | 250 km/hour | 202 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 10.8 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1836 kg | 1490 kg |
| Vehicle Length | 4830 mm | 4560 mm |
| Vehicle Width | 1860 mm | 1770 mm |
| Vehicle Height | 1380 mm | 1410 mm |
| Wheelbase Size | 2790 mm | 2670 mm |
| Fuel Consumption Overall | 12.8 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
