1975 Mazda RX 4 Coupe vs. 2004 Mazda 6
To start off, 2004 Mazda 6 is newer by 29 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, 2004 Mazda 6 (130 HP @ 3500 RPM) has 16 more horse power than 1975 Mazda RX 4 Coupe. (114 HP @ 6000 RPM) In normal driving conditions, 2004 Mazda 6 should accelerate faster than 1975 Mazda RX 4 Coupe. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mazda 6 weights approximately 375 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, 2004 Mazda 6 (310 Nm @ 2000 RPM) has 145 more torque (in Nm) than 1975 Mazda RX 4 Coupe. (165 Nm @ 4000 RPM). This means 2004 Mazda 6 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 | 2004 Mazda 6 | |
| Make | Mazda | Mazda |
| Model | RX 4 Coupe | 6 |
| Year Released | 1975 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2616 cc | 1999 cc |
| Engine Cylinders | 2 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 130 HP |
| Engine RPM | 6000 RPM | 3500 RPM |
| Torque | 165 Nm | 310 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1110 kg | 1485 kg |
| Vehicle Length | 4400 mm | 4690 mm |
| Vehicle Width | 1670 mm | 1790 mm |
| Vehicle Height | 1390 mm | 1440 mm |
| Wheelbase Size | 2520 mm | 2680 mm |
