2006 Audi A8 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 A8. In addition, the cost of maintenance, including insurance, on 2006 Audi A8 would be higher. At 4,172 cc (8 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (329 HP @ 6500 RPM) has 155 more horse power than 2008 Alfa Romeo 156. (174 HP @ 4000 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2008 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 470 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.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2006 Audi A8 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, 2006 Audi A8 (430 Nm @ 3500 RPM) has 45 more torque (in Nm) than 2008 Alfa Romeo 156. (385 Nm @ 2000 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Alfa Romeo 156.
Compare all specifications:
| 2006 Audi A8 | 2008 Alfa Romeo 156 | |
| Make | Audi | Alfa Romeo |
| Model | A8 | 156 |
| Year Released | 2006 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2387 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 329 HP | 174 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 430 Nm | 385 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 84.6 mm | 82 mm |
| Engine Stroke Size | 93 mm | 90.4 mm |
| Engine Compression Ratio | 11.0:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 6.3 seconds | 9.4 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1855 kg | 1385 kg |
| Vehicle Length | 5060 mm | 4440 mm |
| Vehicle Width | 1900 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2950 mm | 2600 mm |
| Fuel Consumption Overall | 8.8 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 90 L | 63 L |
