2005 Alfa Romeo 166 vs. 2006 BMW 525
To start off, 2006 BMW 525 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 166 would be higher. At 3,179 cc (6 cylinders), 2005 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 166 (237 HP @ 6200 RPM) has 22 more horse power than 2006 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2005 Alfa Romeo 166 should accelerate faster than 2006 BMW 525.
Because 2006 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2006 BMW 525 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 Alfa Romeo 166 (289 Nm @ 4800 RPM) has 39 more torque (in Nm) than 2006 BMW 525. (250 Nm @ 2750 RPM). This means 2005 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 525.
Compare all specifications:
| 2005 Alfa Romeo 166 | 2006 BMW 525 | |
| Make | Alfa Romeo | BMW |
| Model | 166 | 525 |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 215 HP |
| Engine RPM | 6200 RPM | 6500 RPM |
| Torque | 289 Nm | 250 Nm |
| Torque RPM | 4800 RPM | 2750 RPM |
| Engine Bore Size | 93 mm | 78.9 mm |
| Engine Stroke Size | 78 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 7.4 seconds | 8.5 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4730 mm | 4850 mm |
| Vehicle Width | 1810 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1500 mm |
| Wheelbase Size | 2710 mm | 2840 mm |
| Fuel Consumption Overall | 12.5 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 72 L | 70 L |
