1998 Alfa Romeo 156 vs. 2006 Audi A8
To start off, 2006 Audi A8 is newer by 8 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 156 would be higher. At 4,172 cc (8 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (329 HP @ 6500 RPM) has 191 more horse power than 1998 Alfa Romeo 156. (138 HP @ 6300 RPM) In normal driving conditions, 2006 Audi A8 should accelerate faster than 1998 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 625 kg more than 1998 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 1998 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Audi A8 (430 Nm @ 3500 RPM) has 267 more torque (in Nm) than 1998 Alfa Romeo 156. (163 Nm @ 3500 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 156.
Compare all specifications:
| 1998 Alfa Romeo 156 | 2006 Audi A8 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | A8 |
| Year Released | 1998 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1746 cc | 4172 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 138 HP | 329 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 163 Nm | 430 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 84.6 mm |
| Engine Stroke Size | 82.7 mm | 93 mm |
| Engine Compression Ratio | 18.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1230 kg | 1855 kg |
| Vehicle Length | 4440 mm | 5060 mm |
| Vehicle Width | 1750 mm | 1900 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2600 mm | 2950 mm |
| Fuel Tank Capacity | 63 L | 90 L |
