2006 Alfa Romeo 166 vs. 2007 Audi S4
To start off, 2007 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2006 Alfa Romeo 166 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (341 HP @ 7000 RPM) has 193 more horse power than 2006 Alfa Romeo 166. (148 HP @ 6500 RPM) In normal driving conditions, 2007 Audi S4 should accelerate faster than 2006 Alfa Romeo 166.
Let's talk about torque, 2007 Audi S4 (410 Nm @ 3500 RPM) has 229 more torque (in Nm) than 2006 Alfa Romeo 166. (181 Nm @ 3800 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 166.
Compare all specifications:
| 2006 Alfa Romeo 166 | 2007 Audi S4 | |
| Make | Alfa Romeo | Audi |
| Model | 166 | S4 |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 148 HP | 341 HP |
| Engine RPM | 6500 RPM | 7000 RPM |
| Torque | 181 Nm | 410 Nm |
| Torque RPM | 3800 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 84.6 mm |
| Engine Stroke Size | 91 mm | 92.7 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 211 km/hour | 249 km/hour |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4730 mm | 4590 mm |
| Vehicle Width | 1810 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2710 mm | 2650 mm |
| Fuel Tank Capacity | 69 L | 63 L |
