2005 Audi S4 vs. 1999 Alfa Romeo 156
To start off, 2005 Audi S4 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 1999 Alfa Romeo 156 would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 204 more horse power than 1999 Alfa Romeo 156. (136 HP @ 4200 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1999 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 490 kg more than 1999 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 106 more torque (in Nm) than 1999 Alfa Romeo 156. (304 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Alfa Romeo 156.
Compare all specifications:
| 2005 Audi S4 | 1999 Alfa Romeo 156 | |
| Make | Audi | Alfa Romeo |
| Model | S4 | 156 |
| Year Released | 2005 | 1999 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 2386 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 136 HP |
| Engine RPM | 6300 RPM | 4200 RPM |
| Torque | 410 Nm | 304 Nm |
| Engine Bore Size | 85 mm | 82 mm |
| Engine Stroke Size | 93 mm | 90.4 mm |
| Engine Compression Ratio | 11.0:1 | 18.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1350 kg |
| Vehicle Length | 4580 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1750 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2600 mm |
| Fuel Tank Capacity | 63 L | 63 L |
