1998 Infiniti Q45 vs. 1978 Mazda 929
To start off, 1998 Infiniti Q45 is newer by 20 year(s). Which means there will be less support and parts availability for 1978 Mazda 929. In addition, the cost of maintenance, including insurance, on 1978 Mazda 929 would be higher. At 4,130 cc (8 cylinders), 1998 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 1998 Infiniti Q45 (265 HP @ 5600 RPM) has 182 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 1998 Infiniti Q45 should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1998 Infiniti Q45 weights approximately 690 kg more than 1978 Mazda 929. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1998 Infiniti Q45 (378 Nm @ 4000 RPM) has 244 more torque (in Nm) than 1978 Mazda 929. (134 Nm @ 3000 RPM). This means 1998 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 1998 Infiniti Q45 | 1978 Mazda 929 | |
| Make | Infiniti | Mazda |
| Model | Q45 | 929 |
| Year Released | 1998 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 4130 cc | 1769 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 265 HP | 83 HP |
| Engine RPM | 5600 RPM | 5000 RPM |
| Torque | 378 Nm | 134 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Bore Size | 93.1 mm | 80 mm |
| Engine Stroke Size | 76 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1760 kg | 1070 kg |
| Vehicle Length | 5070 mm | 4410 mm |
| Vehicle Width | 1830 mm | 1670 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2840 mm | 2520 mm |
| Fuel Tank Capacity | 60 L | 55 L |
