2006 Fiat Siena vs. 2011 Mercedes-Benz A
To start off, 2011 Mercedes-Benz A is newer by 5 year(s). Which means there will be less support and parts availability for 2006 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2006 Fiat Siena would be higher. At 1,991 cc (4 cylinders), 2011 Mercedes-Benz A is equipped with a bigger engine. In terms of performance, 2006 Fiat Siena (101 HP @ 5500 RPM) has 20 more horse power than 2011 Mercedes-Benz A. (81 HP @ 4200 RPM). In normal driving conditions, 2006 Fiat Siena should accelerate faster than 2011 Mercedes-Benz A. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 457 kg more than 2011 Mercedes-Benz A. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2011 Mercedes-Benz A (180 Nm @ 1400 RPM) has 40 more torque (in Nm) than 2006 Fiat Siena. (140 Nm @ 4000 RPM). This means 2011 Mercedes-Benz A will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2006 Fiat Siena | 2011 Mercedes-Benz A | |
| Make | Fiat | Mercedes-Benz |
| Model | Siena | A |
| Year Released | 2006 | 2011 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 1991 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 81 HP |
| Engine RPM | 5500 RPM | 4200 RPM |
| Torque | 140 Nm | 180 Nm |
| Torque RPM | 4000 RPM | 1400 RPM |
| Engine Bore Size | 86.4 mm | 83 mm |
| Engine Stroke Size | 67.4 mm | 92 mm |
| Engine Compression Ratio | 9.5:1 | 18.0:1 |
| Top Speed | 184 km/hour | 170 km/hour |
| Acceleration 0-100mph | 11.1 seconds | 15 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1783 kg | 1326 kg |
| Vehicle Length | 3830 mm | 3840 mm |
| Vehicle Width | 1640 mm | 1770 mm |
| Vehicle Height | 1440 mm | 1600 mm |
| Wheelbase Size | 2380 mm | 2570 mm |
| Fuel Consumption Overall | 8 L/100km | 4.9 L/100km |
| Fuel Tank Capacity | 54 L | 54 L |
