1975 Holden Gemini vs. 1977 Pontiac Firebird
To start off, 1977 Pontiac Firebird is newer by 2 year(s). Which means there will be less support and parts availability for 1975 Holden Gemini. In addition, the cost of maintenance, including insurance, on 1975 Holden Gemini would be higher. At 6,547 cc (8 cylinders), 1977 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1977 Pontiac Firebird (285 HP @ 4400 RPM) has 204 more horse power than 1975 Holden Gemini. (81 HP @ 5200 RPM) In normal driving conditions, 1977 Pontiac Firebird should accelerate faster than 1975 Holden Gemini. With that said, vehicle weight also plays an important factor in acceleration. 1977 Pontiac Firebird weights approximately 696 kg more than 1975 Holden Gemini. 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, 1977 Pontiac Firebird (421 Nm @ 2400 RPM) has 294 more torque (in Nm) than 1975 Holden Gemini. (127 Nm @ 3600 RPM). This means 1977 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1975 Holden Gemini.
Compare all specifications:
| 1975 Holden Gemini | 1977 Pontiac Firebird | |
| Make | Holden | Pontiac |
| Model | Gemini | Firebird |
| Year Released | 1975 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1582 cc | 6547 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 81 HP | 285 HP |
| Engine RPM | 5200 RPM | 4400 RPM |
| Torque | 127 Nm | 421 Nm |
| Torque RPM | 3600 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Vehicle Weight | 900 kg | 1596 kg |
| Vehicle Length | 4140 mm | 4880 mm |
| Vehicle Width | 1580 mm | 1870 mm |
| Vehicle Height | 1370 mm | 1290 mm |
| Wheelbase Size | 2410 mm | 2750 mm |
