2007 Audi A4 vs. 2007 Fiat Siena
To start off, both 2007 Audi A4 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 1,781 cc (4 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (161 HP @ 5700 RPM) has 61 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 424 kg more than 2007 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2007 Audi A4 (225 Nm @ 1950 RPM) has 150 more torque (in Nm) than 2007 Fiat Siena. (75 Nm @ 5500 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2007 Audi A4 | 2007 Fiat Siena | |
| Make | Audi | Fiat |
| Model | A4 | Siena |
| Year Released | 2007 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1581 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 100 HP |
| Engine RPM | 5700 RPM | 5500 RPM |
| Torque | 225 Nm | 75 Nm |
| Torque RPM | 1950 RPM | 5500 RPM |
| Engine Bore Size | 81 mm | 86.4 mm |
| Engine Stroke Size | 86.4 mm | 67.4 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 220 km/hour | 184 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 11.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1494 kg | 1070 kg |
| Vehicle Width | 1780 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2650 mm | 2380 mm |
| Fuel Consumption Overall | 8.3 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 70 L | 54 L |
