1978 Mazda RX-7 vs. 1993 Mazda 626
To start off, 1993 Mazda 626 is newer by 15 year(s). Which means there will be less support and parts availability for 1978 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1978 Mazda RX-7 would be higher. At 2,292 cc, 1978 Mazda RX-7 is equipped with a bigger engine. In terms of performance, 1993 Mazda 626 (110 HP @ 5300 RPM) has 5 more horse power than 1978 Mazda RX-7. (105 HP @ 6000 RPM) In normal driving conditions, 1993 Mazda 626 should accelerate faster than 1978 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 1993 Mazda 626 weights approximately 160 kg more than 1978 Mazda RX-7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1993 Mazda 626 (168 Nm @ 4500 RPM) has 23 more torque (in Nm) than 1978 Mazda RX-7. (145 Nm @ 4000 RPM). This means 1993 Mazda 626 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda RX-7.
Compare all specifications:
| 1978 Mazda RX-7 | 1993 Mazda 626 | |
| Make | Mazda | Mazda |
| Model | RX-7 | 626 |
| Year Released | 1978 | 1993 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2292 cc | 1991 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 105 HP | 110 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 145 Nm | 168 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1060 kg | 1220 kg |
| Vehicle Length | 4290 mm | 4600 mm |
| Vehicle Width | 1680 mm | 1700 mm |
| Vehicle Height | 1280 mm | 1440 mm |
| Wheelbase Size | 2430 mm | 2620 mm |
