2009 Audi A4 vs. 2008 Fiat Siena
To start off, 2009 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2008 Fiat Siena would be higher. At 3,197 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (261 HP @ 6500 RPM) has 161 more horse power than 2008 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2008 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 556 kg more than 2008 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, 2009 Audi A4 (330 Nm @ 3000 RPM) has 256 more torque (in Nm) than 2008 Fiat Siena. (74 Nm @ 5500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Fiat Siena.
Compare all specifications:
| 2009 Audi A4 | 2008 Fiat Siena | |
| Make | Audi | Fiat |
| Model | A4 | Siena |
| Year Released | 2009 | 2008 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3197 cc | 1581 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 261 HP | 100 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 330 Nm | 74 Nm |
| Torque RPM | 3000 RPM | 5500 RPM |
| Engine Bore Size | 84.6 mm | 86.4 mm |
| Engine Stroke Size | 92.8 mm | 67.4 mm |
| Engine Compression Ratio | 12.5:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 6.4 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 | 1630 kg | 1074 kg |
| Vehicle Length | 4710 mm | 3550 mm |
| Vehicle Width | 1830 mm | 1640 mm |
| Vehicle Height | 1440 mm | 1440 mm |
| Wheelbase Size | 2810 mm | 2380 mm |
| Fuel Consumption Overall | 9.1 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 64 L | 54 L |
