1999 Holden Astra vs. 2004 Porsche 911
To start off, 2004 Porsche 911 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Holden Astra. In addition, the cost of maintenance, including insurance, on 1999 Holden Astra would be higher. At 3,589 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (415 HP @ 6000 RPM) has 295 more horse power than 1999 Holden Astra. (120 HP @ 5600 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 1999 Holden Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche 911 weights approximately 585 kg more than 1999 Holden Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Holden Astra. In wet, icy, snow, or gravel driving conditions, 2004 Porsche 911 will offer significantly more control. 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, 2004 Porsche 911 (563 Nm @ 2700 RPM) has 398 more torque (in Nm) than 1999 Holden Astra. (165 Nm @ 3600 RPM). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1999 Holden Astra.
Compare all specifications:
| 1999 Holden Astra | 2004 Porsche 911 | |
| Make | Holden | Porsche |
| Model | Astra | 911 |
| Year Released | 1999 | 2004 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1796 cc | 3589 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 120 HP | 415 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 165 Nm | 563 Nm |
| Torque RPM | 3600 RPM | 2700 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1150 kg | 1735 kg |
| Vehicle Length | 4120 mm | 4440 mm |
| Vehicle Width | 1720 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2610 mm | 2360 mm |
