2004 Alfa Romeo 156 vs. 2005 Audi A8
To start off, 2005 Audi A8 is newer by 1 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 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 197 more horse power than 2004 Alfa Romeo 156. (138 HP @ 6500 RPM) In normal driving conditions, 2005 Audi A8 should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 559 kg more than 2004 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 A8 (430 Nm) has 267 more torque (in Nm) than 2004 Alfa Romeo 156. (163 Nm). This means 2005 Audi A8 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 | 2005 Audi A8 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | A8 |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 4178 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 138 HP | 335 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 163 Nm | 430 Nm |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 82.7 mm | 93 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1386 kg | 1945 kg |
| Vehicle Length | 4440 mm | 5060 mm |
| Vehicle Width | 1750 mm | 1900 mm |
| Vehicle Height | 1400 mm | 1450 mm |
| Wheelbase Size | 2600 mm | 2950 mm |
| Fuel Consumption Overall | 8.5 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
