2009 Mercedes-Benz S vs. 2011 Fiat Siena
To start off, 2011 Fiat Siena is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2009 Mercedes-Benz S would be higher. At 5,513 cc (12 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz S weights approximately 1110 kg more than 2011 Fiat Siena.
Because 2009 Mercedes-Benz S is four wheel drive (4WD), it will have significant more traction and grip than 2011 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Mercedes-Benz S (830 Nm @ 1900 RPM) has 728 more torque (in Nm) than 2011 Fiat Siena. (102 Nm @ 3250 RPM). This means 2009 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2011 Fiat Siena. 2009 Mercedes-Benz S has automatic transmission and 2011 Fiat Siena has manual transmission. 2011 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Mercedes-Benz S | 2011 Fiat Siena | |
| Make | Mercedes-Benz | Fiat |
| Model | S | Siena |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5513 cc | 1242 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 2 valves |
| Horse Power | 510 HP | 0 HP |
| Torque | 830 Nm | 102 Nm |
| Torque RPM | 1900 RPM | 3250 RPM |
| Engine Compression Ratio | 9.0:1 | 9.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 159 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 13.5 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2180 kg | 1070 kg |
| Vehicle Length | 5210 mm | 3830 mm |
| Vehicle Width | 1480 mm | 1640 mm |
| Vehicle Height | 1880 mm | 1440 mm |
| Wheelbase Size | 3170 mm | 2380 mm |
| Fuel Consumption Overall | 14.3 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 90 L | 54 L |
