1975 Mazda RX 4 Coupe vs. 2006 Mazda RX-8
To start off, 2006 Mazda RX-8 is newer by 31 year(s). Which means there will be less support and parts availability for 1975 Mazda RX 4 Coupe. In addition, the cost of maintenance, including insurance, on 1975 Mazda RX 4 Coupe would be higher. At 2,616 cc (2 cylinders), 1975 Mazda RX 4 Coupe is equipped with a bigger engine. In terms of performance, 2006 Mazda RX-8 (228 HP @ 8200 RPM) has 114 more horse power than 1975 Mazda RX 4 Coupe. (114 HP @ 6000 RPM) In normal driving conditions, 2006 Mazda RX-8 should accelerate faster than 1975 Mazda RX 4 Coupe. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mazda RX-8 weights approximately 318 kg more than 1975 Mazda RX 4 Coupe. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2006 Mazda RX-8 (211 Nm @ 5500 RPM) has 46 more torque (in Nm) than 1975 Mazda RX 4 Coupe. (165 Nm @ 4000 RPM). This means 2006 Mazda RX-8 will have an easier job in driving up hills or pulling heavy equipment than 1975 Mazda RX 4 Coupe.
Compare all specifications:
| 1975 Mazda RX 4 Coupe | 2006 Mazda RX-8 | |
| Make | Mazda | Mazda |
| Model | RX 4 Coupe | RX-8 |
| Year Released | 1975 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2616 cc | 1308 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 114 HP | 228 HP |
| Engine RPM | 6000 RPM | 8200 RPM |
| Torque | 165 Nm | 211 Nm |
| Torque RPM | 4000 RPM | 5500 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1110 kg | 1428 kg |
| Vehicle Length | 4400 mm | 4440 mm |
| Vehicle Width | 1670 mm | 1780 mm |
| Vehicle Height | 1390 mm | 1350 mm |
| Wheelbase Size | 2520 mm | 2710 mm |
