2005 GMC Sierra vs. 1991 Holden Commodore
To start off, 2005 GMC Sierra is newer by 14 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 5,964 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (340 HP @ 5200 RPM) has 172 more horse power than 1991 Holden Commodore. (168 HP @ 4800 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1991 Holden Commodore. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 1035 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 2005 GMC Sierra 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, 2005 GMC Sierra 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, 2005 GMC Sierra (516 Nm @ 4000 RPM) has 223 more torque (in Nm) than 1991 Holden Commodore. (293 Nm @ 3200 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 Holden Commodore. 2005 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. 2005 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 GMC Sierra | 1991 Holden Commodore | |
| Make | GMC | Holden |
| Model | Sierra | Commodore |
| Year Released | 2005 | 1991 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5964 cc | 3791 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 168 HP |
| Engine RPM | 5200 RPM | 4800 RPM |
| Torque | 516 Nm | 293 Nm |
| Torque RPM | 4000 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2345 kg | 1310 kg |
| Vehicle Length | 5740 mm | 4860 mm |
| Vehicle Width | 2000 mm | 1800 mm |
| Vehicle Height | 1910 mm | 1410 mm |
| Wheelbase Size | 3650 mm | 2740 mm |
