2003 Pontiac Bonneville vs. 2002 Pontiac Grand Am
To start off, 2003 Pontiac Bonneville is newer by 1 year(s). Which means there will be less support and parts availability for 2002 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 2002 Pontiac Grand Am would be higher. At 4,565 cc (8 cylinders), 2003 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2003 Pontiac Bonneville (275 HP @ 5600 RPM) has 100 more horse power than 2002 Pontiac Grand Am. (175 HP @ 4800 RPM). In normal driving conditions, 2003 Pontiac Bonneville should accelerate faster than 2002 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 2003 Pontiac Bonneville weights approximately 305 kg more than 2002 Pontiac Grand Am. 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, 2003 Pontiac Bonneville (298 Nm @ 4000 RPM) has 13 more torque (in Nm) than 2002 Pontiac Grand Am. (285 Nm @ 4000 RPM). This means 2003 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 2002 Pontiac Grand Am.
Compare all specifications:
| 2003 Pontiac Bonneville | 2002 Pontiac Grand Am | |
| Make | Pontiac | Pontiac |
| Model | Bonneville | Grand Am |
| Year Released | 2003 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3349 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 275 HP | 175 HP |
| Engine RPM | 5600 RPM | 4800 RPM |
| Torque | 298 Nm | 285 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 93.1 mm | 92 mm |
| Engine Stroke Size | 84 mm | 84 mm |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1719 kg | 1414 kg |
| Vehicle Length | 5150 mm | 4740 mm |
| Vehicle Width | 1890 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1410 mm |
| Wheelbase Size | 2790 mm | 2730 mm |
| Fuel Tank Capacity | 70 L | 54 L |
