2003 Alfa Romeo 166 vs. 2005 Audi RS6
To start off, 2005 Audi RS6 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 4,163 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 6300 RPM) has 227 more horse power than 2003 Alfa Romeo 166. (217 HP @ 6300 RPM) In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 360 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 RS6 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 RS6 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 RS6 (560 Nm @ 1950 RPM) has 295 more torque (in Nm) than 2003 Alfa Romeo 166. (265 Nm @ 5000 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166. 2003 Alfa Romeo 166 has automatic transmission and 2005 Audi RS6 has manual transmission. 2005 Audi RS6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alfa Romeo 166 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2005 Audi RS6 | |
| Make | Alfa Romeo | Audi |
| Model | 166 | RS6 |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 217 HP | 444 HP |
| Engine RPM | 6300 RPM | 6300 RPM |
| Torque | 265 Nm | 560 Nm |
| Torque RPM | 5000 RPM | 1950 RPM |
| Engine Bore Size | 93 mm | 84.5 mm |
| Engine Stroke Size | 72.6 mm | 93 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Acceleration 0-100mph | 8.6 seconds | 4.7 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1550 kg | 1910 kg |
| Vehicle Length | 4730 mm | 4800 mm |
| Vehicle Width | 1810 mm | 1820 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2600 mm | 2660 mm |
| Fuel Consumption Overall | 13 L/100km | 14.8 L/100km |
| Fuel Tank Capacity | 69 L | 70 L |
