1978 Mazda 929 vs. 1998 Mazda RX-7
To start off, 1998 Mazda RX-7 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 2,616 cc, 1998 Mazda RX-7 is equipped with a bigger engine. In terms of performance, 1998 Mazda RX-7 (280 HP @ 6500 RPM) has 190 more horse power than 1978 Mazda 929. (90 HP @ 4800 RPM) In normal driving conditions, 1998 Mazda RX-7 should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1998 Mazda RX-7 weights approximately 120 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1998 Mazda RX-7 (315 Nm @ 5000 RPM) has 155 more torque (in Nm) than 1978 Mazda 929. (160 Nm @ 2500 RPM). This means 1998 Mazda RX-7 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 1978 Mazda 929 | 1998 Mazda RX-7 | |
| Make | Mazda | Mazda |
| Model | 929 | RX-7 |
| Year Released | 1978 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 2616 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 90 HP | 280 HP |
| Engine RPM | 4800 RPM | 6500 RPM |
| Torque | 160 Nm | 315 Nm |
| Torque RPM | 2500 RPM | 5000 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1150 kg | 1270 kg |
| Vehicle Length | 4640 mm | 4290 mm |
| Vehicle Width | 1720 mm | 1770 mm |
| Vehicle Height | 1450 mm | 1240 mm |
| Wheelbase Size | 2620 mm | 2430 mm |
