1978 Mazda 121 vs. 2010 Infiniti M
To start off, 2010 Infiniti M is newer by 32 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 4,493 cc (8 cylinders), 2010 Infiniti M is equipped with a bigger engine. In terms of performance, 2010 Infiniti M (325 HP @ 6400 RPM) has 239 more horse power than 1978 Mazda 121. (86 HP @ 4800 RPM) In normal driving conditions, 2010 Infiniti M should accelerate faster than 1978 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2010 Infiniti M weights approximately 589 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 2010 Infiniti M 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, 2010 Infiniti M 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, 2010 Infiniti M (456 Nm @ 4000 RPM) has 296 more torque (in Nm) than 1978 Mazda 121. (160 Nm @ 3000 RPM). This means 2010 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 121.
Compare all specifications:
| 1978 Mazda 121 | 2010 Infiniti M | |
| Make | Mazda | Infiniti |
| Model | 121 | M |
| Year Released | 1978 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 4493 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 86 HP | 325 HP |
| Engine RPM | 4800 RPM | 6400 RPM |
| Torque | 160 Nm | 456 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Compression Ratio | 8.6:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1130 kg | 1719 kg |
| Vehicle Length | 4510 mm | 4940 mm |
| Vehicle Width | 1690 mm | 1810 mm |
| Vehicle Height | 1350 mm | 1530 mm |
| Wheelbase Size | 2520 mm | 2910 mm |
