2007 Jeep Grand Cherokee vs. 1977 Mazda 121
To start off, 2007 Jeep Grand Cherokee is newer by 30 year(s). Which means there will be less support and parts availability for 1977 Mazda 121. In addition, the cost of maintenance, including insurance, on 1977 Mazda 121 would be higher. At 4,701 cc (8 cylinders), 2007 Jeep Grand Cherokee is equipped with a bigger engine. In terms of performance, 2007 Jeep Grand Cherokee (228 HP @ 4500 RPM) has 142 more horse power than 1977 Mazda 121. (86 HP @ 4800 RPM). In normal driving conditions, 2007 Jeep Grand Cherokee should accelerate faster than 1977 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2007 Jeep Grand Cherokee weights approximately 1000 kg more than 1977 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Jeep Grand Cherokee is four wheel drive (4WD), it will have significant more traction and grip than 1977 Mazda 121. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Jeep Grand Cherokee (410 Nm @ 3600 RPM) has 250 more torque (in Nm) than 1977 Mazda 121. (160 Nm @ 3000 RPM). This means 2007 Jeep Grand Cherokee will have an easier job in driving up hills or pulling heavy equipment than 1977 Mazda 121.
Compare all specifications:
| 2007 Jeep Grand Cherokee | 1977 Mazda 121 | |
| Make | Jeep | Mazda |
| Model | Grand Cherokee | 121 |
| Year Released | 2007 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4701 cc | 1970 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 228 HP | 86 HP |
| Engine RPM | 4500 RPM | 4800 RPM |
| Torque | 410 Nm | 160 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Engine Bore Size | 93 mm | 80.1 mm |
| Engine Stroke Size | 86.7 mm | 98 mm |
| Engine Compression Ratio | 9.0:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 2130 kg | 1130 kg |
| Vehicle Length | 4760 mm | 4510 mm |
| Vehicle Width | 2160 mm | 1690 mm |
| Vehicle Height | 1750 mm | 1350 mm |
| Wheelbase Size | 2790 mm | 2520 mm |
