2005 Alfa Romeo 159 vs. 2009 Audi RS4
To start off, 2009 Audi RS4 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 159. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 159 would be higher. At 4,163 cc (8 cylinders), 2009 Audi RS4 is equipped with a bigger engine. In terms of performance, 2009 Audi RS4 (414 HP @ 7800 RPM) has 256 more horse power than 2005 Alfa Romeo 159. (158 HP @ 6500 RPM) In normal driving conditions, 2009 Audi RS4 should accelerate faster than 2005 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS4 weights approximately 365 kg more than 2005 Alfa Romeo 159. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alfa Romeo 159. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS4 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, 2009 Audi RS4 (430 Nm @ 5500 RPM) has 240 more torque (in Nm) than 2005 Alfa Romeo 159. (190 Nm @ 4500 RPM). This means 2009 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 159.
Compare all specifications:
| 2005 Alfa Romeo 159 | 2009 Audi RS4 | |
| Make | Alfa Romeo | Audi |
| Model | 159 | RS4 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1859 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 414 HP |
| Engine RPM | 6500 RPM | 7800 RPM |
| Torque | 190 Nm | 430 Nm |
| Torque RPM | 4500 RPM | 5500 RPM |
| Engine Bore Size | 86.1 mm | 84.5 mm |
| Engine Stroke Size | 80 mm | 92.8 mm |
| Engine Compression Ratio | 11.3:1 | 12.5:1 |
| Acceleration 0-100mph | 9.7 seconds | 4.9 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1480 kg | 1845 kg |
| Vehicle Length | 4670 mm | 4560 mm |
| Vehicle Width | 1830 mm | 1820 mm |
| Vehicle Height | 1420 mm | 1400 mm |
| Wheelbase Size | 2600 mm | 2660 mm |
| Fuel Consumption Overall | 8.7 L/100km | 14.1 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
