2005 Chevrolet Impala vs. 2007 Fiat Siena
To start off, 2007 Fiat Siena is newer by 2 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 3,354 cc (6 cylinders), 2005 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2005 Chevrolet Impala (177 HP @ 5200 RPM) has 105 more horse power than 2007 Fiat Siena. (72 HP @ 6000 RPM). In normal driving conditions, 2005 Chevrolet Impala should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 Chevrolet Impala weights approximately 465 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.
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 (278 Nm @ 4000 RPM) has 176 more torque (in Nm) than 2007 Fiat Siena. (102 Nm @ 3250 RPM). This means 2005 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena. 2005 Chevrolet Impala 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 Chevrolet Impala will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Chevrolet Impala | 2007 Fiat Siena | |
| Make | Chevrolet | Fiat |
| Model | Impala | Siena |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3354 cc | 1242 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 177 HP | 72 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 278 Nm | 102 Nm |
| Torque RPM | 4000 RPM | 3250 RPM |
| Engine Compression Ratio | 9.5:1 | 9.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1070 kg |
| Vehicle Length | 5090 mm | 3830 mm |
| Vehicle Width | 1860 mm | 1640 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2710 mm | 2380 mm |
| Fuel Consumption Overall | 9.4 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 117 L | 54 L |
