2009 Hummer H3 vs. 1978 Mazda 121
To start off, 2009 Hummer H3 is newer by 31 year(s). Which means there will be less support and parts availability for 1978 Mazda 121. In addition, the cost of maintenance, including insurance, on 1978 Mazda 121 would be higher. At 3,653 cc (5 cylinders), 2009 Hummer H3 is equipped with a bigger engine. In terms of performance, 2009 Hummer H3 (239 HP @ 5800 RPM) has 153 more horse power than 1978 Mazda 121. (86 HP @ 4800 RPM). In normal driving conditions, 2009 Hummer H3 should accelerate faster than 1978 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H3 weights approximately 1720 kg more than 1978 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Mazda 121. In wet, icy, snow, or gravel driving conditions, 2009 Hummer H3 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, 2009 Hummer H3 (327 Nm @ 4600 RPM) has 167 more torque (in Nm) than 1978 Mazda 121. (160 Nm @ 3000 RPM). This means 2009 Hummer H3 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 121.
Compare all specifications:
| 2009 Hummer H3 | 1978 Mazda 121 | |
| Make | Hummer | Mazda |
| Model | H3 | 121 |
| Year Released | 2009 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 3653 cc | 1970 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 239 HP | 86 HP |
| Engine RPM | 5800 RPM | 4800 RPM |
| Torque | 327 Nm | 160 Nm |
| Torque RPM | 4600 RPM | 3000 RPM |
| Engine Compression Ratio | 9.9:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 2850 kg | 1130 kg |
| Vehicle Length | 4770 mm | 4510 mm |
| Vehicle Width | 2170 mm | 1690 mm |
| Vehicle Height | 1870 mm | 1350 mm |
| Wheelbase Size | 2850 mm | 2520 mm |
