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 2,387 cc (5 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (173 HP @ 4000 RPM) has 24 more horse power than 2007 BMW X3. (149 HP @ 4000 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 160 kg more 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, both vehicles can yield 330 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2003 Alfa Romeo 166 has automatic transmission and 2007 BMW X3 has manual transmission. 2007 BMW X3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alfa Romeo 166 will be easier to drive especially in heavy traffic.
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 | 2387 cc | 1995 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 149 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 330 Nm | 330 Nm |
| Torque RPM | 1750 RPM | 2000 RPM |
| Engine Compression Ratio | 18.0:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 213 km/hour | 215 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 9.1 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1580 kg | 1740 kg |
| Vehicle Length | 4730 mm | 4570 mm |
| Vehicle Width | 1810 mm | 1680 mm |
| Vehicle Height | 1420 mm | 1860 mm |
| Wheelbase Size | 2710 mm | 2800 mm |
| Fuel Consumption Overall | 8.9 L/100km | 6.5 L/100km |
| Fuel Tank Capacity | 69 L | 67 L |
