2009 GMC Sierra vs. 1991 Holden Commodore
To start off, 2009 GMC Sierra 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 4,300 cc (6 cylinders), 2009 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 GMC Sierra (192 HP @ 4600 RPM) has 24 more horse power than 1991 Holden Commodore. (168 HP @ 4800 RPM). In normal driving conditions, 2009 GMC Sierra should accelerate faster than 1991 Holden Commodore.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1991 Holden Commodore (293 Nm @ 3200 RPM) has 33 more torque (in Nm) than 2009 GMC Sierra. (260 Nm @ 2800 RPM). This means 1991 Holden Commodore will have an easier job in driving up hills or pulling heavy equipment than 2009 GMC Sierra. 2009 GMC Sierra has automatic transmission and 1991 Holden Commodore has manual transmission. 1991 Holden Commodore will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 GMC Sierra | 1991 Holden Commodore | |
| Make | GMC | Holden |
| Model | Sierra | Commodore |
| Year Released | 2009 | 1991 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4300 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 192 HP | 168 HP |
| Engine RPM | 4600 RPM | 4800 RPM |
| Torque | 260 Nm | 293 Nm |
| Torque RPM | 2800 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 5140 mm | 4860 mm |
| Vehicle Width | 2040 mm | 1800 mm |
| Vehicle Height | 1880 mm | 1410 mm |
| Wheelbase Size | 3030 mm | 2740 mm |
