1979 BMW 728 vs. 2004 Mazda 6
To start off, 2004 Mazda 6 is newer by 25 year(s). Which means there will be less support and parts availability for 1979 BMW 728. In addition, the cost of maintenance, including insurance, on 1979 BMW 728 would be higher. At 2,788 cc (6 cylinders), 1979 BMW 728 is equipped with a bigger engine. In terms of performance, 2004 Mazda 6 (256 HP @ 6000 RPM) has 75 more horse power than 1979 BMW 728. (181 HP @ 5800 RPM) In normal driving conditions, 2004 Mazda 6 should accelerate faster than 1979 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 1979 BMW 728 weights approximately 440 kg more than 2004 Mazda 6.
Because 2004 Mazda 6 is four wheel drive (4WD), it will have significant more traction and grip than 1979 BMW 728. 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 140 more torque (in Nm) than 1979 BMW 728. (240 Nm @ 4200 RPM). This means 2004 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 728.
Compare all specifications:
| 1979 BMW 728 | 2004 Mazda 6 | |
| Make | BMW | Mazda |
| Model | 728 | 6 |
| Year Released | 1979 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 2261 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 256 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 240 Nm | 380 Nm |
| Torque RPM | 4200 RPM | 3000 RPM |
| Engine Bore Size | 86 mm | 87.5 mm |
| Engine Stroke Size | 80 mm | 94 mm |
| Engine Compression Ratio | 9.3:1 | 9.5:1 |
| Top Speed | 201 km/hour | 250 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1030 kg |
| Vehicle Length | 4870 mm | 4750 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2800 mm | 2680 mm |
