1991 Pontiac Bonneville vs. 2005 Pontiac Grand Prix
To start off, 2005 Pontiac Grand Prix is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Pontiac Bonneville. In addition, the cost of maintenance, including insurance, on 1991 Pontiac Bonneville would be higher. At 3,791 cc (6 cylinders), 1991 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2005 Pontiac Grand Prix (200 HP) has 50 more horse power than 1991 Pontiac Bonneville. (150 HP) In normal driving conditions, 2005 Pontiac Grand Prix should accelerate faster than 1991 Pontiac Bonneville. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Grand Prix weights approximately 77 kg more than 1991 Pontiac Bonneville. 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, 2005 Pontiac Grand Prix (298 Nm) has 27 more torque (in Nm) than 1991 Pontiac Bonneville. (271 Nm). This means 2005 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 1991 Pontiac Bonneville.
Compare all specifications:
| 1991 Pontiac Bonneville | 2005 Pontiac Grand Prix | |
| Make | Pontiac | Pontiac |
| Model | Bonneville | Grand Prix |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 3786 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 150 HP | 200 HP |
| Torque | 271 Nm | 298 Nm |
| Engine Bore Size | 96.6 mm | 97 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 8.5:1 | 9.4:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1500 kg | 1577 kg |
| Vehicle Length | 5050 mm | 5040 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2820 mm | 2810 mm |
| Fuel Tank Capacity | 68 L | 64 L |
