2005 Audi S4 vs. 2006 Fiat Siena
To start off, 2006 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 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 (340 HP @ 6300 RPM) has 268 more horse power than 2006 Fiat Siena. (72 HP @ 6000 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 565 kg more than 2006 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 308 more torque (in Nm) than 2006 Fiat Siena. (102 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2005 Audi S4 | 2006 Fiat Siena | |
| Make | Audi | Fiat |
| Model | S4 | Siena |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1242 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 72 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 410 Nm | 102 Nm |
| Engine Bore Size | 85.1 mm | 70.8 mm |
| Engine Stroke Size | 93 mm | 78.8 mm |
| Engine Compression Ratio | 11.0:1 | 9.1:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1735 kg | 1170 kg |
| Vehicle Length | 4550 mm | 3830 mm |
| Vehicle Width | 1770 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2380 mm |
| Fuel Consumption Overall | 13.8 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 63 L | 54 L |
