2003 Alfa Romeo 166 vs. 2007 BMW X3
To start off, 2007 BMW X3 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 2,979 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (260 HP @ 6600 RPM) has 43 more horse power than 2003 Alfa Romeo 166. (217 HP @ 6300 RPM) In normal driving conditions, 2007 BMW X3 should accelerate faster than 2003 Alfa Romeo 166.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2007 BMW X3 will offer significantly more control. 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 X3 (305 Nm @ 2750 RPM) has 40 more torque (in Nm) than 2003 Alfa Romeo 166. (265 Nm @ 5000 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2007 BMW X3 | |
| Make | Alfa Romeo | BMW |
| Model | 166 | X3 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 217 HP | 260 HP |
| Engine RPM | 6300 RPM | 6600 RPM |
| Torque | 265 Nm | 305 Nm |
| Torque RPM | 5000 RPM | 2750 RPM |
| Engine Bore Size | 93 mm | 85.1 mm |
| Engine Stroke Size | 72.6 mm | 87.9 mm |
| Engine Compression Ratio | 10.0:1 | 10.7:1 |
| Top Speed | 236 km/hour | 209 km/hour |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 4 doors | 5 doors |
