2009 Chevrolet Impala vs. 2007 Toyota Sienna
To start off, 2009 Chevrolet Impala is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Toyota Sienna. In addition, the cost of maintenance, including insurance, on 2007 Toyota Sienna would be higher. At 5,670 cc (8 cylinders), 2009 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2009 Chevrolet Impala (303 HP @ 5600 RPM) has 37 more horse power than 2007 Toyota Sienna. (266 HP @ 6200 RPM). In normal driving conditions, 2009 Chevrolet Impala should accelerate faster than 2007 Toyota Sienna. With that said, vehicle weight also plays an important factor in acceleration. 2009 Chevrolet Impala weights approximately 146 kg more than 2007 Toyota Sienna. 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, 2009 Chevrolet Impala (438 Nm @ 4000 RPM) has 106 more torque (in Nm) than 2007 Toyota Sienna. (332 Nm @ 4700 RPM). This means 2009 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 2007 Toyota Sienna.
Compare all specifications:
| 2009 Chevrolet Impala | 2007 Toyota Sienna | |
| Make | Chevrolet | Toyota |
| Model | Impala | Sienna |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 5670 cc | 3458 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 303 HP | 266 HP |
| Engine RPM | 5600 RPM | 6200 RPM |
| Torque | 438 Nm | 332 Nm |
| Torque RPM | 4000 RPM | 4700 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 8 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2141 kg | 1995 kg |
| Vehicle Length | 5100 mm | 5110 mm |
| Vehicle Width | 1860 mm | 1970 mm |
| Vehicle Height | 1500 mm | 1760 mm |
| Wheelbase Size | 2810 mm | 3040 mm |
