2007 Alfa Romeo 166 vs. 2007 BMW 645
To start off, both 2007 Alfa Romeo 166 and 2007 BMW 645 were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,398 cc (8 cylinders), 2007 BMW 645 is equipped with a bigger engine. In terms of performance, 2007 BMW 645 (328 HP @ 6100 RPM) has 150 more horse power than 2007 Alfa Romeo 166. (178 HP @ 4000 RPM) In normal driving conditions, 2007 BMW 645 should accelerate faster than 2007 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 645 weights approximately 200 kg more than 2007 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2007 Alfa Romeo 166, 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, 2007 BMW 645 (450 Nm @ 3600 RPM) has 65 more torque (in Nm) than 2007 Alfa Romeo 166. (385 Nm @ 2000 RPM). This means 2007 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2007 Alfa Romeo 166.
Compare all specifications:
| 2007 Alfa Romeo 166 | 2007 BMW 645 | |
| Make | Alfa Romeo | BMW |
| Model | 166 | 645 |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 4398 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 178 HP | 328 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 385 Nm | 450 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Compression Ratio | 18.5:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 217 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 6.1 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1615 kg | 1815 kg |
| Vehicle Length | 4730 mm | 4830 mm |
| Vehicle Width | 1810 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2710 mm | 2790 mm |
| Fuel Consumption Overall | 7.5 L/100km | 13 L/100km |
| Fuel Tank Capacity | 69 L | 70 L |
