2008 Fiat Siena vs. 2007 Mercedes-Benz A
To start off, 2008 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz A. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz A would be higher. At 1,991 cc (4 cylinders), 2007 Mercedes-Benz A is equipped with a bigger engine. In terms of performance, 2008 Fiat Siena (106 HP @ 5500 RPM) has 25 more horse power than 2007 Mercedes-Benz A. (81 HP @ 4200 RPM). In normal driving conditions, 2008 Fiat Siena should accelerate faster than 2007 Mercedes-Benz A. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz A weights approximately 205 kg more than 2008 Fiat Siena.
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, 2007 Mercedes-Benz A (180 Nm @ 1400 RPM) has 40 more torque (in Nm) than 2008 Fiat Siena. (140 Nm @ 4000 RPM). This means 2007 Mercedes-Benz A will have an easier job in driving up hills or pulling heavy equipment than 2008 Fiat Siena.
Compare all specifications:
| 2008 Fiat Siena | 2007 Mercedes-Benz A | |
| Make | Fiat | Mercedes-Benz |
| Model | Siena | A |
| Year Released | 2008 | 2007 |
| 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 | 4 valves | 4 valves |
| Horse Power | 106 HP | 81 HP |
| Engine RPM | 5500 RPM | 4200 RPM |
| Torque | 140 Nm | 180 Nm |
| Torque RPM | 4000 RPM | 1400 RPM |
| Engine Bore Size | 86.5 mm | 83 mm |
| Engine Stroke Size | 67.4 mm | 92 mm |
| Engine Compression Ratio | 10.2:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 10.5 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 | 1095 kg | 1300 kg |
| Vehicle Length | 3550 mm | 3840 mm |
| Vehicle Width | 1640 mm | 1770 mm |
| Vehicle Height | 1490 mm | 1600 mm |
| Wheelbase Size | 2370 mm | 2570 mm |
| Fuel Consumption Overall | 8.2 L/100km | 5.2 L/100km |
| Fuel Tank Capacity | 47 L | 54 L |
