1991 Ford Sierra vs. 1979 Isuzu Gemini
To start off, 1991 Ford Sierra is newer by 12 year(s). Which means there will be less support and parts availability for 1979 Isuzu Gemini. In addition, the cost of maintenance, including insurance, on 1979 Isuzu Gemini would be higher. At 1,817 cc (4 cylinders), 1979 Isuzu Gemini is equipped with a bigger engine. In terms of performance, 1979 Isuzu Gemini (102 HP @ 5600 RPM) has 27 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM) In normal driving conditions, 1979 Isuzu Gemini should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Sierra weights approximately 195 kg more than 1979 Isuzu Gemini.
Let's talk about torque, both vehicles can yield 152 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.
Compare all specifications:
| 1991 Ford Sierra | 1979 Isuzu Gemini | |
| Make | Ford | Isuzu |
| Model | Sierra | Gemini |
| Year Released | 1991 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 1817 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 102 HP |
| Engine RPM | 4500 RPM | 5600 RPM |
| Torque | 152 Nm | 152 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 82 mm | 82 mm |
| Fuel Type | Diesel | Gasoline |
| Vehicle Weight | 1145 kg | 950 kg |
| Vehicle Length | 4430 mm | 4240 mm |
| Vehicle Width | 1700 mm | 1580 mm |
| Vehicle Height | 1370 mm | 1350 mm |
| Wheelbase Size | 2620 mm | 2410 mm |
