2004 Alfa Romeo 156 vs. 2009 Audi S4
To start off, 2009 Audi S4 is newer by 5 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 4,163 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 7000 RPM) has 192 more horse power than 2004 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 2009 Audi S4 should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 655 kg more than 2009 Audi S4.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2009 Audi S4 (410 Nm @ 3500 RPM) has 110 more torque (in Nm) than 2004 Alfa Romeo 156. (300 Nm @ 2000 RPM). This means 2009 Audi S4 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 | 2009 Audi S4 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | S4 |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 148 HP | 340 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 300 Nm | 410 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 84.6 mm |
| Engine Stroke Size | 90.4 mm | 92.8 mm |
| Engine Compression Ratio | 18.5:1 | 18.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1585 kg | 930 kg |
| Vehicle Length | 4450 mm | 4580 mm |
| Vehicle Width | 1770 mm | 1780 mm |
| Vehicle Height | 1480 mm | 1400 mm |
| Wheelbase Size | 2600 mm | 2660 mm |
| Fuel Consumption Overall | 7.1 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 50 L | 63 L |
