2009 Chevrolet Impala vs. 2005 Pontiac Grand Prix
To start off, 2009 Chevrolet Impala is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 2005 Pontiac Grand Prix 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 43 more horse power than 2005 Pontiac Grand Prix. (260 HP @ 5200 RPM). In normal driving conditions, 2009 Chevrolet Impala should accelerate faster than 2005 Pontiac Grand Prix. With that said, vehicle weight also plays an important factor in acceleration. 2009 Chevrolet Impala weights approximately 521 kg more than 2005 Pontiac Grand Prix. 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) has 58 more torque (in Nm) than 2005 Pontiac Grand Prix. (380 Nm). This means 2009 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 2005 Pontiac Grand Prix.
Compare all specifications:
| 2009 Chevrolet Impala | 2005 Pontiac Grand Prix | |
| Make | Chevrolet | Pontiac |
| Model | Impala | Grand Prix |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5670 cc | 3786 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 303 HP | 260 HP |
| Engine RPM | 5600 RPM | 5200 RPM |
| Torque | 438 Nm | 380 Nm |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2141 kg | 1620 kg |
| Vehicle Length | 5100 mm | 5040 mm |
| Vehicle Width | 1860 mm | 1830 mm |
| Vehicle Height | 1500 mm | 1420 mm |
| Wheelbase Size | 2810 mm | 2810 mm |
| Fuel Consumption Highway | 9.8 L/100km | 8.4 L/100km |
| Fuel Consumption City | 14.7 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
