1975 Mazda 818 vs. 1991 Opel Calibra
To start off, 1991 Opel Calibra is newer by 16 year(s). Which means there will be less support and parts availability for 1975 Mazda 818. In addition, the cost of maintenance, including insurance, on 1975 Mazda 818 would be higher. At 1,998 cc (4 cylinders), 1991 Opel Calibra is equipped with a bigger engine. In terms of performance, 1991 Opel Calibra (115 HP @ 5200 RPM) has 47 more horse power than 1975 Mazda 818. (68 HP @ 6200 RPM) In normal driving conditions, 1991 Opel Calibra should accelerate faster than 1975 Mazda 818. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Calibra weights approximately 190 kg more than 1975 Mazda 818. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Opel Calibra is four wheel drive (4WD), it will have significant more traction and grip than 1975 Mazda 818. In wet, icy, snow, or gravel driving conditions, 1991 Opel Calibra will offer significantly more control. 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, 1991 Opel Calibra (174 Nm @ 2600 RPM) has 82 more torque (in Nm) than 1975 Mazda 818. (92 Nm @ 4000 RPM). This means 1991 Opel Calibra will have an easier job in driving up hills or pulling heavy equipment than 1975 Mazda 818.
Compare all specifications:
| 1975 Mazda 818 | 1991 Opel Calibra | |
| Make | Mazda | Opel |
| Model | 818 | Calibra |
| Year Released | 1975 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1272 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 68 HP | 115 HP |
| Engine RPM | 6200 RPM | 5200 RPM |
| Torque | 92 Nm | 174 Nm |
| Torque RPM | 4000 RPM | 2600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Vehicle Weight | 1000 kg | 1190 kg |
| Vehicle Length | 4100 mm | 4500 mm |
| Vehicle Width | 1600 mm | 1680 mm |
| Vehicle Height | 1410 mm | 1330 mm |
| Wheelbase Size | 2320 mm | 2610 mm |
