2009 Audi A8 vs. 2009 Fiat Siena
To start off, both 2009 Audi A8 and 2009 Fiat Siena were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,163 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (350 HP @ 6800 RPM) has 250 more horse power than 2009 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2009 Fiat Siena.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 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, 2009 Audi A8 (442 Nm @ 3500 RPM) has 368 more torque (in Nm) than 2009 Fiat Siena. (74 Nm @ 5500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Fiat Siena. 2009 Audi A8 has automatic transmission and 2009 Fiat Siena has manual transmission. 2009 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A8 | 2009 Fiat Siena | |
| Make | Audi | Fiat |
| Model | A8 | Siena |
| Year Released | 2009 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1581 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 100 HP |
| Engine RPM | 6800 RPM | 5500 RPM |
| Torque | 442 Nm | 74 Nm |
| Torque RPM | 3500 RPM | 5500 RPM |
| Engine Bore Size | 84.5 mm | 86.4 mm |
| Engine Stroke Size | 92.8 mm | 67.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5070 mm | 3550 mm |
| Vehicle Width | 1900 mm | 1640 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2950 mm | 2380 mm |
| Fuel Consumption Overall | 13.1 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 90 L | 54 L |
