2009 Audi RS6 vs. 1998 Alfa Romeo 155
To start off, 2009 Audi RS6 is newer by 11 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 155 would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 79 more horse power than 1998 Alfa Romeo 155. (493 HP @ 11700 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 1998 Alfa Romeo 155. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS6 weights approximately 988 kg more than 1998 Alfa Romeo 155. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 350 more torque (in Nm) than 1998 Alfa Romeo 155. (300 Nm @ 9500 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 155.
Compare all specifications:
| 2009 Audi RS6 | 1998 Alfa Romeo 155 | |
| Make | Audi | Alfa Romeo |
| Model | RS6 | 155 |
| Year Released | 2009 | 1998 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 2499 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 572 HP | 493 HP |
| Engine RPM | 6250 RPM | 11700 RPM |
| Torque | 650 Nm | 300 Nm |
| Torque RPM | 1500 RPM | 9500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2028 kg | 1040 kg |
| Vehicle Width | 1900 mm | 1750 mm |
