2005 Opel Signum vs. 1975 Holden Gemini
To start off, 2005 Opel Signum is newer by 30 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 1,993 cc (4 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (99 HP @ 3120 RPM) has 18 more horse power than 1975 Holden Gemini. (81 HP @ 5200 RPM). In normal driving conditions, 2005 Opel Signum should accelerate faster than 1975 Holden Gemini. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 695 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.
Because 1975 Holden Gemini is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1975 Holden Gemini. However, in wet, icy, snow, or gravel driving conditions, 2005 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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 Opel Signum (230 Nm @ 1500 RPM) has 103 more torque (in Nm) than 1975 Holden Gemini. (127 Nm @ 3600 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1975 Holden Gemini. 1975 Holden Gemini has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 Holden Gemini will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Opel Signum | 1975 Holden Gemini | |
| Make | Opel | Holden |
| Model | Signum | Gemini |
| Year Released | 2005 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 1582 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 99 HP | 81 HP |
| Engine RPM | 3120 RPM | 5200 RPM |
| Torque | 230 Nm | 127 Nm |
| Torque RPM | 1500 RPM | 3600 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1595 kg | 900 kg |
| Vehicle Length | 4640 mm | 4140 mm |
| Vehicle Width | 1800 mm | 1580 mm |
| Vehicle Height | 1470 mm | 1370 mm |
| Wheelbase Size | 2740 mm | 2410 mm |
