2005 Audi A4 vs. 2004 Alfa Romeo 166
To start off, 2005 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 166 would be higher. At 2,387 cc (5 cylinders), 2004 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (161 HP @ 5700 RPM) has 13 more horse power than 2004 Alfa Romeo 166. (148 HP @ 4000 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2004 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 48 kg more than 2004 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 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, 2004 Alfa Romeo 166 (300 Nm @ 1800 RPM) has 75 more torque (in Nm) than 2005 Audi A4. (225 Nm @ 1950 RPM). This means 2004 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2004 Alfa Romeo 166 | |
| Make | Audi | Alfa Romeo |
| Model | A4 | 166 |
| Year Released | 2005 | 2004 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2387 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 161 HP | 148 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 225 Nm | 300 Nm |
| Torque RPM | 1950 RPM | 1800 RPM |
| Engine Bore Size | 81 mm | 82 mm |
| Engine Stroke Size | 86.4 mm | 90.4 mm |
| Engine Compression Ratio | 9.0:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 222 km/hour | 210 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 9.9 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1590 kg | 1542 kg |
| Vehicle Length | 4580 mm | 4730 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2600 mm |
| Fuel Consumption Overall | 9.4 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 66 L | 69 L |
