1981 Holden Commodore vs. 1991 Mazda RX-7
To start off, 1991 Mazda RX-7 is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Holden Commodore. In addition, the cost of maintenance, including insurance, on 1981 Holden Commodore would be higher. At 4,142 cc (8 cylinders), 1981 Holden Commodore is equipped with a bigger engine. In terms of performance, 1991 Mazda RX-7 (197 HP @ 6500 RPM) has 63 more horse power than 1981 Holden Commodore. (134 HP @ 4200 RPM) In normal driving conditions, 1991 Mazda RX-7 should accelerate faster than 1981 Holden Commodore. With that said, vehicle weight also plays an important factor in acceleration. 1981 Holden Commodore weights approximately 48 kg more than 1991 Mazda RX-7.
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, both vehicles can yield 270 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 1981 Holden Commodore has automatic transmission and 1991 Mazda RX-7 has manual transmission. 1991 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1981 Holden Commodore will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 Holden Commodore | 1991 Mazda RX-7 | |
| Make | Holden | Mazda |
| Model | Commodore | RX-7 |
| Year Released | 1981 | 1991 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4142 cc | 2616 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 134 HP | 197 HP |
| Engine RPM | 4200 RPM | 6500 RPM |
| Torque | 270 Nm | 270 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1350 kg | 1302 kg |
| Vehicle Length | 4710 mm | 4320 mm |
| Vehicle Width | 1730 mm | 1700 mm |
| Vehicle Height | 1370 mm | 1270 mm |
| Wheelbase Size | 2670 mm | 2430 mm |
