2003 Pontiac GTO vs. 2004 Pontiac Bonneville
To start off, 2004 Pontiac Bonneville is newer by 1 year(s). Which means there will be less support and parts availability for 2003 Pontiac GTO. In addition, the cost of maintenance, including insurance, on 2003 Pontiac GTO would be higher. At 5,665 cc (8 cylinders), 2003 Pontiac GTO is equipped with a bigger engine. In terms of performance, 2003 Pontiac GTO (350 HP @ 5200 RPM) has 145 more horse power than 2004 Pontiac Bonneville. (205 HP @ 5200 RPM). In normal driving conditions, 2003 Pontiac GTO should accelerate faster than 2004 Pontiac Bonneville. With that said, vehicle weight also plays an important factor in acceleration. 2003 Pontiac GTO weights approximately 60 kg more than 2004 Pontiac Bonneville. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 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 2003 Pontiac GTO. However, in wet, icy, snow, or gravel driving conditions, 2004 Pontiac Bonneville, 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, 2003 Pontiac GTO (495 Nm @ 4000 RPM) has 184 more torque (in Nm) than 2004 Pontiac Bonneville. (311 Nm @ 4000 RPM). This means 2003 Pontiac GTO will have an easier job in driving up hills or pulling heavy equipment than 2004 Pontiac Bonneville.
Compare all specifications:
| 2003 Pontiac GTO | 2004 Pontiac Bonneville | |
| Make | Pontiac | Pontiac |
| Model | GTO | Bonneville |
| Year Released | 2003 | 2004 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5665 cc | 3791 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 350 HP | 205 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 495 Nm | 311 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 99 mm | 96.5 mm |
| Engine Stroke Size | 92 mm | 86.4 mm |
| Engine Compression Ratio | 10.1:1 | 9.4:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1690 kg | 1630 kg |
| Vehicle Length | 4830 mm | 5110 mm |
| Vehicle Width | 1850 mm | 1890 mm |
| Vehicle Height | 1400 mm | 1440 mm |
| Wheelbase Size | 2860 mm | 2880 mm |
| Fuel Tank Capacity | 70 L | 68 L |
