1979 Mazda 121 vs. 1999 Jeep Grand Cherokee
To start off, 1999 Jeep Grand Cherokee is newer by 20 year(s). Which means there will be less support and parts availability for 1979 Mazda 121. In addition, the cost of maintenance, including insurance, on 1979 Mazda 121 would be higher. At 3,955 cc (6 cylinders), 1999 Jeep Grand Cherokee is equipped with a bigger engine. In terms of performance, 1999 Jeep Grand Cherokee (187 HP @ 5000 RPM) has 97 more horse power than 1979 Mazda 121. (90 HP @ 4800 RPM) In normal driving conditions, 1999 Jeep Grand Cherokee should accelerate faster than 1979 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 1999 Jeep Grand Cherokee weights approximately 666 kg more than 1979 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Jeep Grand Cherokee is four wheel drive (4WD), it will have significant more traction and grip than 1979 Mazda 121. In wet, icy, snow, or gravel driving conditions, 1999 Jeep Grand Cherokee 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, 1999 Jeep Grand Cherokee (295 Nm @ 3050 RPM) has 135 more torque (in Nm) than 1979 Mazda 121. (160 Nm @ 3000 RPM). This means 1999 Jeep Grand Cherokee will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 121.
Compare all specifications:
| 1979 Mazda 121 | 1999 Jeep Grand Cherokee | |
| Make | Mazda | Jeep |
| Model | 121 | Grand Cherokee |
| Year Released | 1979 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 3955 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 90 HP | 187 HP |
| Engine RPM | 4800 RPM | 5000 RPM |
| Torque | 160 Nm | 295 Nm |
| Torque RPM | 3000 RPM | 3050 RPM |
| Engine Bore Size | 80 mm | 98.6 mm |
| Engine Stroke Size | 98 mm | 86.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1134 kg | 1800 kg |
| Vehicle Length | 4510 mm | 4620 mm |
| Vehicle Width | 1690 mm | 1810 mm |
| Vehicle Height | 1350 mm | 1770 mm |
| Wheelbase Size | 2520 mm | 2660 mm |
