2004 Mazda 6 vs. 1978 Mazda 929
To start off, 2004 Mazda 6 is newer by 26 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 2,261 cc (4 cylinders), 2004 Mazda 6 is equipped with a bigger engine. In terms of performance, 2004 Mazda 6 (256 HP @ 6000 RPM) has 166 more horse power than 1978 Mazda 929. (90 HP @ 4800 RPM). In normal driving conditions, 2004 Mazda 6 should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mazda 929 weights approximately 120 kg more than 2004 Mazda 6.
Because 2004 Mazda 6 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Mazda 929. In wet, icy, snow, or gravel driving conditions, 2004 Mazda 6 will offer significantly more control. 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, 2004 Mazda 6 (380 Nm @ 3000 RPM) has 220 more torque (in Nm) than 1978 Mazda 929. (160 Nm @ 2500 RPM). This means 2004 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 2004 Mazda 6 | 1978 Mazda 929 | |
| Make | Mazda | Mazda |
| Model | 6 | 929 |
| Year Released | 2004 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2261 cc | 1970 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 256 HP | 90 HP |
| Engine RPM | 6000 RPM | 4800 RPM |
| Torque | 380 Nm | 160 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 87.5 mm | 80.1 mm |
| Engine Stroke Size | 94 mm | 98 mm |
| Engine Compression Ratio | 9.5:1 | 8.6:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1030 kg | 1150 kg |
| Vehicle Length | 4750 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1720 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 2680 mm | 2620 mm |
