2006 Audi S4 vs. 2008 Alfa Romeo 156
To start off, 2008 Alfa Romeo 156 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi S4. In addition, the cost of maintenance, including insurance, on 2006 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 151 more horse power than 2008 Alfa Romeo 156. (189 HP @ 6300 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2008 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 524 kg more than 2008 Alfa Romeo 156. 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 S4 (410 Nm @ 3500 RPM) has 192 more torque (in Nm) than 2008 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Alfa Romeo 156.
Compare all specifications:
| 2006 Audi S4 | 2008 Alfa Romeo 156 | |
| Make | Audi | Alfa Romeo |
| Model | S4 | 156 |
| Year Released | 2006 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2492 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 189 HP |
| Engine RPM | 7000 RPM | 6300 RPM |
| Torque | 410 Nm | 218 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Bore Size | 84.5 mm | 88 mm |
| Engine Stroke Size | 92.8 mm | 68.3 mm |
| Engine Compression Ratio | 11.0:1 | 10.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 5.8 seconds | 7.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1356 kg |
| Vehicle Length | 4590 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1750 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2650 mm | 2600 mm |
| Fuel Consumption Overall | 12.3 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 63 L | 63 L |
