2005 Alfa Romeo 159 vs. 2006 Audi A6
To start off, 2006 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 159. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 159 would be higher. At 3,130 cc (6 cylinders), 2006 Audi A6 is equipped with a bigger engine. In terms of performance, 2006 Audi A6 (255 HP @ 6500 RPM) has 97 more horse power than 2005 Alfa Romeo 159. (158 HP @ 6500 RPM) In normal driving conditions, 2006 Audi A6 should accelerate faster than 2005 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A6 weights approximately 30 kg more than 2005 Alfa Romeo 159. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2006 Audi A6 (330 Nm @ 3250 RPM) has 140 more torque (in Nm) than 2005 Alfa Romeo 159. (190 Nm @ 4500 RPM). This means 2006 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 159.
Compare all specifications:
| 2005 Alfa Romeo 159 | 2006 Audi A6 | |
| Make | Alfa Romeo | Audi |
| Model | 159 | A6 |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1859 cc | 3130 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 158 HP | 255 HP |
| Engine RPM | 6500 RPM | 6500 RPM |
| Torque | 190 Nm | 330 Nm |
| Torque RPM | 4500 RPM | 3250 RPM |
| Engine Bore Size | 86.1 mm | 84.5 mm |
| Engine Stroke Size | 80 mm | 92.8 mm |
| Engine Compression Ratio | 11.3:1 | 13.0:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1480 kg | 1510 kg |
| Vehicle Length | 4670 mm | 4920 mm |
| Vehicle Width | 1830 mm | 2020 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2850 mm |
| Fuel Consumption | 6.6 L/100km | 8.7 L/100km |
| Fuel Consumption City | 12.2 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 8.7 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
