2003 Alfa Romeo 156 vs. 2005 Audi A8
To start off, 2005 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (450 HP @ 6300 RPM) has 278 more horse power than 2003 Alfa Romeo 156. (172 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A8 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 760 kg more than 2003 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Audi A8 (560 Nm) has 175 more torque (in Nm) than 2003 Alfa Romeo 156. (385 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2005 Audi A8 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | A8 |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 5998 cc |
| Horse Power | 172 HP | 450 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 385 Nm | 560 Nm |
| Engine Compression Ratio | 18.5:1 | 11.0:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1385 kg | 2145 kg |
| Vehicle Length | 4440 mm | 5200 mm |
| Vehicle Width | 1750 mm | 1900 mm |
| Vehicle Height | 1440 mm | 1460 mm |
| Wheelbase Size | 2600 mm | 3080 mm |
| Fuel Consumption | 5.3 L/100km | 11.2 L/100km |
| Fuel Consumption City | 8.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 6.6 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
