1971 Opel Commodore vs. 1985 Pontiac Firebird
To start off, 1985 Pontiac Firebird is newer by 14 year(s). Which means there will be less support and parts availability for 1971 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1971 Opel Commodore would be higher. At 2,838 cc (6 cylinders), 1985 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1985 Pontiac Firebird (135 HP @ 5100 RPM) has 21 more horse power than 1971 Opel Commodore. (114 HP @ 5200 RPM) In normal driving conditions, 1985 Pontiac Firebird should accelerate faster than 1971 Opel Commodore. With that said, vehicle weight also plays an important factor in acceleration. 1985 Pontiac Firebird weights approximately 192 kg more than 1971 Opel Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1985 Pontiac Firebird (223 Nm @ 3600 RPM) has 46 more torque (in Nm) than 1971 Opel Commodore. (177 Nm @ 3800 RPM). This means 1985 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1971 Opel Commodore.
Compare all specifications:
| 1971 Opel Commodore | 1985 Pontiac Firebird | |
| Make | Opel | Pontiac |
| Model | Commodore | Firebird |
| Year Released | 1971 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 2490 cc | 2838 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 114 HP | 135 HP |
| Engine RPM | 5200 RPM | 5100 RPM |
| Torque | 177 Nm | 223 Nm |
| Torque RPM | 3800 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1170 kg | 1362 kg |
| Vehicle Length | 4580 mm | 4850 mm |
| Vehicle Width | 1760 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1270 mm |
| Wheelbase Size | 2680 mm | 2570 mm |
| Fuel Tank Capacity | 70 L | 60 L |
