2005 Chevrolet Impala vs. 2009 Fiat Siena
To start off, 2009 Fiat Siena is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Chevrolet Impala. In addition, the cost of maintenance, including insurance, on 2005 Chevrolet Impala would be higher. At 3,786 cc (6 cylinders), 2005 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2005 Chevrolet Impala (240 HP @ 5600 RPM) has 140 more horse power than 2009 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2005 Chevrolet Impala should accelerate faster than 2009 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 Chevrolet Impala weights approximately 543 kg more than 2009 Fiat Siena. 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, 2005 Chevrolet Impala (380 Nm) has 306 more torque (in Nm) than 2009 Fiat Siena. (74 Nm). This means 2005 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 2009 Fiat Siena. 2005 Chevrolet Impala has automatic transmission and 2009 Fiat Siena has manual transmission. 2009 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Chevrolet Impala will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Chevrolet Impala | 2009 Fiat Siena | |
| Make | Chevrolet | Fiat |
| Model | Impala | Siena |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3786 cc | 1581 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 240 HP | 100 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 380 Nm | 74 Nm |
| Engine Bore Size | 96 mm | 86.4 mm |
| Engine Stroke Size | 86 mm | 67.4 mm |
| Engine Compression Ratio | 8.5:1 | 9.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1617 kg | 1074 kg |
| Vehicle Length | 5090 mm | 3550 mm |
| Vehicle Width | 1860 mm | 1640 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2830 mm | 2380 mm |
| Fuel Consumption Overall | 10.8 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 64 L | 54 L |
