2004 Aston Martin Vanquish vs. 2005 Fiat Siena
To start off, 2005 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Aston Martin Vanquish. In addition, the cost of maintenance, including insurance, on 2004 Aston Martin Vanquish would be higher. At 5,934 cc (12 cylinders), 2004 Aston Martin Vanquish is equipped with a bigger engine. In terms of performance, 2004 Aston Martin Vanquish (520 HP @ 7000 RPM) has 396 more horse power than 2005 Fiat Siena. (124 HP @ 4000 RPM). In normal driving conditions, 2004 Aston Martin Vanquish should accelerate faster than 2005 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2004 Aston Martin Vanquish weights approximately 780 kg more than 2005 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Aston Martin Vanquish is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2004 Aston Martin Vanquish. However, in wet, icy, snow, or gravel driving conditions, 2005 Fiat Siena, being front wheel drive (FWD), will offer much better control with better grip. 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, 2004 Aston Martin Vanquish (555 Nm @ 5800 RPM) has 415 more torque (in Nm) than 2005 Fiat Siena. (140 Nm @ 4000 RPM). This means 2004 Aston Martin Vanquish will have an easier job in driving up hills or pulling heavy equipment than 2005 Fiat Siena.
Compare all specifications:
| 2004 Aston Martin Vanquish | 2005 Fiat Siena | |
| Make | Aston Martin | Fiat |
| Model | Vanquish | Siena |
| Year Released | 2004 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5934 cc | 1585 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 520 HP | 124 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 555 Nm | 140 Nm |
| Torque RPM | 5800 RPM | 4000 RPM |
| Engine Bore Size | 89 mm | 86.4 mm |
| Engine Stroke Size | 79.5 mm | 67.4 mm |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1875 kg | 1095 kg |
| Wheelbase Size | 2700 mm | 2450 mm |
| Fuel Tank Capacity | 80 L | 47 L |
