2005 Pontiac Sunfire vs. 2006 Pontiac GTO
To start off, 2006 Pontiac GTO is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Pontiac Sunfire. In addition, the cost of maintenance, including insurance, on 2005 Pontiac Sunfire would be higher. At 5,969 cc (8 cylinders), 2006 Pontiac GTO is equipped with a bigger engine. In terms of performance, 2006 Pontiac GTO (400 HP @ 5200 RPM) has 259 more horse power than 2005 Pontiac Sunfire. (141 HP @ 5600 RPM) In normal driving conditions, 2006 Pontiac GTO should accelerate faster than 2005 Pontiac Sunfire. With that said, vehicle weight also plays an important factor in acceleration. 2006 Pontiac GTO weights approximately 724 kg more than 2005 Pontiac Sunfire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Pontiac GTO 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 2006 Pontiac GTO. However, in wet, icy, snow, or gravel driving conditions, 2005 Pontiac Sunfire, 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, 2006 Pontiac GTO (542 Nm @ 4000 RPM) has 339 more torque (in Nm) than 2005 Pontiac Sunfire. (203 Nm @ 4000 RPM). This means 2006 Pontiac GTO will have an easier job in driving up hills or pulling heavy equipment than 2005 Pontiac Sunfire.
Compare all specifications:
| 2005 Pontiac Sunfire | 2006 Pontiac GTO | |
| Make | Pontiac | Pontiac |
| Model | Sunfire | GTO |
| Year Released | 2005 | 2006 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2189 cc | 5969 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 141 HP | 400 HP |
| Engine RPM | 5600 RPM | 5200 RPM |
| Torque | 203 Nm | 542 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 101.6 mm |
| Engine Stroke Size | 94 mm | 91.9 mm |
| Engine Compression Ratio | 10.0:1 | 10.9:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1261 kg | 1985 kg |
| Vehicle Length | 4630 mm | 4830 mm |
| Vehicle Width | 1740 mm | 1850 mm |
| Vehicle Height | 1350 mm | 1400 mm |
| Wheelbase Size | 2860 mm | 2800 mm |
| Fuel Consumption Overall | 11.2 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 76 L | 68 L |
