2007 Pontiac Grand Prix vs. 2004 Holden Astra
To start off, 2007 Pontiac Grand Prix is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Holden Astra. In addition, the cost of maintenance, including insurance, on 2004 Holden Astra would be higher. At 3,786 cc (6 cylinders), 2007 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2007 Pontiac Grand Prix (200 HP) has 76 more horse power than 2004 Holden Astra. (124 HP). In normal driving conditions, 2007 Pontiac Grand Prix should accelerate faster than 2004 Holden Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Pontiac Grand Prix weights approximately 78 kg more than 2004 Holden Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Pontiac Grand Prix 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 2007 Pontiac Grand Prix. However, in wet, icy, snow, or gravel driving conditions, 2004 Holden Astra, 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, 2007 Pontiac Grand Prix (312 Nm @ 4000 RPM) has 139 more torque (in Nm) than 2004 Holden Astra. (173 Nm @ 3800 RPM). This means 2007 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 2004 Holden Astra.
Compare all specifications:
| 2007 Pontiac Grand Prix | 2004 Holden Astra | |
| Make | Pontiac | Holden |
| Model | Grand Prix | Astra |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3786 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 200 HP | 124 HP |
| Torque | 312 Nm | 173 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1356 kg | 1278 kg |
| Vehicle Length | 5040 mm | 4260 mm |
| Vehicle Width | 1830 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2620 mm |
