2009 Porsche 911 vs. 1991 Holden Commodore
To start off, 2009 Porsche 911 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Holden Commodore. In addition, the cost of maintenance, including insurance, on 1991 Holden Commodore would be higher. At 4,987 cc (8 cylinders), 1991 Holden Commodore is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (350 HP @ 6600 RPM) has 129 more horse power than 1991 Holden Commodore. (221 HP @ 4400 RPM). In normal driving conditions, 2009 Porsche 911 should accelerate faster than 1991 Holden Commodore. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 65 kg more than 1991 Holden Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Holden Commodore. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Porsche 911 (400 Nm @ 4600 RPM) has 15 more torque (in Nm) than 1991 Holden Commodore. (385 Nm @ 3600 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Holden Commodore. 1991 Holden Commodore has automatic transmission and 2009 Porsche 911 has manual transmission. 2009 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Holden Commodore will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Porsche 911 | 1991 Holden Commodore | |
| Make | Porsche | Holden |
| Model | 911 | Commodore |
| Year Released | 2009 | 1991 |
| Body Type | Coupe | Sedan |
| Engine Position | Rear | Front |
| Engine Size | 3824 cc | 4987 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | in-line |
| Horse Power | 350 HP | 221 HP |
| Engine RPM | 6600 RPM | 4400 RPM |
| Torque | 400 Nm | 385 Nm |
| Torque RPM | 4600 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1465 kg |
| Vehicle Length | 4430 mm | 4900 mm |
| Vehicle Width | 1310 mm | 1820 mm |
| Vehicle Height | 1860 mm | 1410 mm |
| Wheelbase Size | 2360 mm | 2740 mm |
