2003 Alfa Romeo 166 vs. 2005 Audi S6
To start off, 2005 Audi S6 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S6 is equipped with a bigger engine. In terms of performance, 2005 Audi S6 (335 HP @ 7000 RPM) has 162 more horse power than 2003 Alfa Romeo 166. (173 HP @ 4000 RPM) In normal driving conditions, 2005 Audi S6 should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S6 weights approximately 180 kg more than 2003 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2005 Audi S6 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, 2005 Audi S6 (420 Nm @ 3400 RPM) has 90 more torque (in Nm) than 2003 Alfa Romeo 166. (330 Nm @ 1750 RPM). This means 2005 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2005 Audi S6 | |
| Make | Alfa Romeo | Audi |
| Model | 166 | S6 |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 4172 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 173 HP | 335 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 330 Nm | 420 Nm |
| Torque RPM | 1750 RPM | 3400 RPM |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Top Speed | 213 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 6.7 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1580 kg | 1760 kg |
| Wheelbase Size | 2710 mm | 2770 mm |
| Fuel Tank Capacity | 69 L | 82 L |
