2009 Acura RDX vs. 1991 Holden Commodore
To start off, 2009 Acura RDX 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 3,791 cc (6 cylinders), 1991 Holden Commodore is equipped with a bigger engine. In terms of performance, 2009 Acura RDX (240 HP @ 6000 RPM) has 68 more horse power than 1991 Holden Commodore. (172 HP @ 4800 RPM). In normal driving conditions, 2009 Acura RDX should accelerate faster than 1991 Holden Commodore. With that said, vehicle weight also plays an important factor in acceleration. 2009 Acura RDX weights approximately 55 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 Acura RDX 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 Acura RDX 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 Acura RDX (353 Nm @ 4500 RPM) has 65 more torque (in Nm) than 1991 Holden Commodore. (288 Nm @ 3200 RPM). This means 2009 Acura RDX will have an easier job in driving up hills or pulling heavy equipment than 1991 Holden Commodore.
Compare all specifications:
| 2009 Acura RDX | 1991 Holden Commodore | |
| Make | Acura | Holden |
| Model | RDX | Commodore |
| Year Released | 2009 | 1991 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2300 cc | 3791 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 240 HP | 172 HP |
| Engine RPM | 6000 RPM | 4800 RPM |
| Torque | 353 Nm | 288 Nm |
| Torque RPM | 4500 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1395 kg |
| Vehicle Length | 4600 mm | 4900 mm |
| Vehicle Width | 1880 mm | 1820 mm |
| Vehicle Height | 1660 mm | 1410 mm |
| Wheelbase Size | 2660 mm | 2740 mm |
