2003 Alfa Romeo 166 vs. 2005 Audi S4
To start off, 2005 Audi S4 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 S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 166 more horse power than 2003 Alfa Romeo 166. (173 HP @ 4000 RPM) In normal driving conditions, 2005 Audi S4 should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 95 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 S4 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 S4 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 S4 (430 Nm @ 3500 RPM) has 100 more torque (in Nm) than 2003 Alfa Romeo 166. (330 Nm @ 1750 RPM). This means 2005 Audi S4 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 S4 has manual transmission. 2005 Audi S4 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 S4 | |
| Make | Alfa Romeo | Audi |
| Model | 166 | S4 |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 4163 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 173 HP | 339 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 330 Nm | 430 Nm |
| Torque RPM | 1750 RPM | 3500 RPM |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 213 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 5.9 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 | 1580 kg | 1675 kg |
| Vehicle Length | 4730 mm | 4580 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2710 mm | 2580 mm |
| Fuel Consumption Overall | 8.9 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 69 L | 66 L |
