2004 Alfa Romeo 156 vs. 2008 Audi A6
To start off, 2008 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 156 would be higher. At 2,965 cc (6 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (221 HP @ 4000 RPM) has 48 more horse power than 2004 Alfa Romeo 156. (173 HP @ 4000 RPM) In normal driving conditions, 2008 Audi A6 should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 365 kg more than 2004 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2008 Audi A6 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, 2008 Audi A6 (450 Nm @ 1400 RPM) has 50 more torque (in Nm) than 2004 Alfa Romeo 156. (400 Nm @ 2000 RPM). This means 2008 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 156.
Compare all specifications:
| 2004 Alfa Romeo 156 | 2008 Audi A6 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | A6 |
| Year Released | 2004 | 2008 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2965 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 221 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 400 Nm | 450 Nm |
| Torque RPM | 2000 RPM | 1400 RPM |
| Engine Bore Size | 82 mm | 83 mm |
| Engine Stroke Size | 90.4 mm | 91.4 mm |
| Engine Compression Ratio | 18.5:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 8.6 seconds | 7.3 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1460 kg | 1825 kg |
| Vehicle Length | 4440 mm | 4940 mm |
| Vehicle Width | 1750 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2850 mm |
| Fuel Consumption Overall | 6.6 L/100km | 8 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
