2007 Fiat Siena vs. 2005 Mercedes-Benz S
To start off, 2007 Fiat Siena is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz S would be higher. At 3,724 cc (6 cylinders), 2005 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz S (242 HP @ 5700 RPM) has 142 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM) In normal driving conditions, 2005 Mercedes-Benz S should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz S weights approximately 845 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.
Because 2005 Mercedes-Benz S is four wheel drive (4WD), it will have significant more traction and grip than 2007 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2005 Mercedes-Benz S 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 Mercedes-Benz S (350 Nm @ 3000 RPM) has 210 more torque (in Nm) than 2007 Fiat Siena. (140 Nm @ 4000 RPM). This means 2005 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena. 2005 Mercedes-Benz S has automatic transmission and 2007 Fiat Siena has manual transmission. 2007 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Fiat Siena | 2005 Mercedes-Benz S | |
| Make | Fiat | Mercedes-Benz |
| Model | Siena | S |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 3724 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 100 HP | 242 HP |
| Engine RPM | 5500 RPM | 5700 RPM |
| Torque | 140 Nm | 350 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 179 km/hour | 241 km/hour |
| Acceleration 0-100mph | 11.5 seconds | 7.9 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 1915 kg |
| Vehicle Width | 1640 mm | 1860 mm |
| Wheelbase Size | 2380 mm | 2860 mm |
| Fuel Consumption Overall | 8.2 L/100km | 12.1 L/100km |
| Fuel Tank Capacity | 54 L | 88 L |
