2003 Alfa Romeo 166 vs. 2007 BMW X5
To start off, 2007 BMW X5 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 4,799 cc (8 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (350 HP @ 6300 RPM) has 165 more horse power than 2003 Alfa Romeo 166. (185 HP @ 6300 RPM) In normal driving conditions, 2007 BMW X5 should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 765 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 2007 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, 2007 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, 2007 BMW X5 (476 Nm @ 3400 RPM) has 255 more torque (in Nm) than 2003 Alfa Romeo 166. (221 Nm @ 5000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166. 2007 BMW X5 has automatic transmission and 2003 Alfa Romeo 166 has manual transmission. 2003 Alfa Romeo 166 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2007 BMW X5 | |
| Make | Alfa Romeo | BMW |
| Model | 166 | X5 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 185 HP | 350 HP |
| Engine RPM | 6300 RPM | 6300 RPM |
| Torque | 221 Nm | 476 Nm |
| Torque RPM | 5000 RPM | 3400 RPM |
| Top Speed | 220 km/hour | 246 km/hour |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1435 kg | 2200 kg |
| Vehicle Length | 4730 mm | 4860 mm |
| Vehicle Width | 1810 mm | 1940 mm |
| Vehicle Height | 1420 mm | 1770 mm |
| Wheelbase Size | 2710 mm | 2940 mm |
| Fuel Consumption | 8.8 L/100km | 11.2 L/100km |
| Fuel Consumption City | 17.2 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 69 L | 85 L |
