2005 Alfa Romeo 156 vs. 2007 Audi A6
To start off, 2007 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 2,698 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (178 HP @ 3300 RPM) has 40 more horse power than 2005 Alfa Romeo 156. (138 HP @ 4000 RPM) In normal driving conditions, 2007 Audi A6 should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 140 kg more than 2007 Audi A6.
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, 2007 Audi A6 (380 Nm @ 1400 RPM) has 70 more torque (in Nm) than 2005 Alfa Romeo 156. (310 Nm @ 2000 RPM). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2007 Audi A6 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | A6 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 2698 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 178 HP |
| Engine RPM | 4000 RPM | 3300 RPM |
| Torque | 310 Nm | 380 Nm |
| Torque RPM | 2000 RPM | 1400 RPM |
| Engine Bore Size | 82 mm | 83 mm |
| Engine Stroke Size | 90.4 mm | 83.1 mm |
| Engine Compression Ratio | 18.4:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 209 km/hour | 230 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 8.4 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1415 kg | 1275 kg |
| Vehicle Length | 4440 mm | 4920 mm |
| Vehicle Width | 1750 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2850 mm |
| Fuel Consumption Overall | 6 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
