2007 Audi S4 vs. 2007 Fiat Siena
To start off, both 2007 Audi S4 and 2007 Fiat Siena were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. 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 273 more horse power than 2007 Fiat Siena. (68 HP @ 4600 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2007 Fiat Siena.
Let's talk about torque, 2007 Audi S4 (410 Nm @ 3500 RPM) has 275 more torque (in Nm) than 2007 Fiat Siena. (135 Nm @ 2500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2007 Audi S4 | 2007 Fiat Siena | |
| Make | Audi | Fiat |
| Model | S4 | Siena |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1697 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 341 HP | 68 HP |
| Engine RPM | 7000 RPM | 4600 RPM |
| Torque | 410 Nm | 135 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Compression Ratio | 11.0:1 | 20.3:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 249 km/hour | 160 km/hour |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4590 mm | 4140 mm |
| Vehicle Width | 1730 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2650 mm | 2380 mm |
| Fuel Tank Capacity | 63 L | 47 L |
