2003 Alfa Romeo 166 vs. 2005 BMW X5
To start off, 2005 BMW X5 is newer by 2 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 2,926 cc (6 cylinders), 2005 BMW X5 is equipped with a bigger engine. In terms of performance, 2005 BMW X5 (215 HP @ 4000 RPM) has 67 more horse power than 2003 Alfa Romeo 166. (148 HP @ 6500 RPM) In normal driving conditions, 2005 BMW X5 should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 660 kg more than 2003 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW X5 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, 2005 BMW X5 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, 2005 BMW X5 (520 Nm @ 2000 RPM) has 339 more torque (in Nm) than 2003 Alfa Romeo 166. (181 Nm @ 3800 RPM). This means 2005 BMW X5 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 | 2005 BMW X5 | |
| Make | Alfa Romeo | BMW |
| Model | 166 | X5 |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 2926 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 215 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 181 Nm | 520 Nm |
| Torque RPM | 3800 RPM | 2000 RPM |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 91 mm | 90 mm |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 211 km/hour | 210 km/hour |
| Acceleration 0-100mph | 9.8 seconds | 8.3 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1510 kg | 2170 kg |
| Vehicle Length | 4730 mm | 4670 mm |
| Vehicle Width | 1810 mm | 1880 mm |
| Vehicle Height | 1420 mm | 1720 mm |
| Wheelbase Size | 2710 mm | 2830 mm |
| Fuel Consumption Overall | 9.9 L/100km | 8.6 L/100km |
