2005 Audi RS4 vs. 2003 Fiat Siena
To start off, 2005 Audi RS4 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 2,671 cc (6 cylinders), 2005 Audi RS4 is equipped with a bigger engine. In terms of performance, 2005 Audi RS4 (376 HP @ 6300 RPM) has 277 more horse power than 2003 Fiat Siena. (99 HP @ 6000 RPM). In normal driving conditions, 2005 Audi RS4 should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS4 weights approximately 535 kg more than 2003 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS4 will offer significantly more control. 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, 2005 Audi RS4 (449 Nm @ 2500 RPM) has 303 more torque (in Nm) than 2003 Fiat Siena. (146 Nm @ 4000 RPM). This means 2005 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena.
Compare all specifications:
| 2005 Audi RS4 | 2003 Fiat Siena | |
| Make | Audi | Fiat |
| Model | RS4 | Siena |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1596 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 376 HP | 99 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 449 Nm | 146 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1050 kg |
| Vehicle Length | 4600 mm | 4110 mm |
| Vehicle Width | 1820 mm | 1630 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2380 mm |
