2005 Chevrolet Impala vs. 2008 Pontiac G8
To start off, 2008 Pontiac G8 is newer by 3 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 5,967 cc (8 cylinders), 2008 Pontiac G8 is equipped with a bigger engine. In terms of performance, 2008 Pontiac G8 (362 HP @ 5700 RPM) has 181 more horse power than 2005 Chevrolet Impala. (181 HP @ 5600 RPM) In normal driving conditions, 2008 Pontiac G8 should accelerate faster than 2005 Chevrolet Impala. With that said, vehicle weight also plays an important factor in acceleration. 2005 Chevrolet Impala weights approximately 185 kg more than 2008 Pontiac G8.
Because 2008 Pontiac G8 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2008 Pontiac G8. However, in wet, icy, snow, or gravel driving conditions, 2005 Chevrolet Impala, being front wheel drive (FWD), will offer much better control with better grip. 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, 2008 Pontiac G8 (530 Nm) has 252 more torque (in Nm) than 2005 Chevrolet Impala. (278 Nm). This means 2008 Pontiac G8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Chevrolet Impala. 2005 Chevrolet Impala has automatic transmission and 2008 Pontiac G8 has manual transmission. 2008 Pontiac G8 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 | 2008 Pontiac G8 | |
| Make | Chevrolet | Pontiac |
| Model | Impala | G8 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3343 cc | 5967 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 181 HP | 362 HP |
| Engine RPM | 5600 RPM | 5700 RPM |
| Torque | 278 Nm | 530 Nm |
| Engine Compression Ratio | 9.5:1 | 10.4:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1537 kg | 1352 kg |
| Vehicle Length | 5090 mm | 4990 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2880 mm | 2920 mm |
| Fuel Consumption Overall | 9.4 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
