1979 BMW 728 vs. 1984 Ford Sierra
To start off, 1984 Ford Sierra is newer by 5 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 2,792 cc (6 cylinders), 1984 Ford Sierra is equipped with a bigger engine. In terms of performance, 1979 BMW 728 (181 HP @ 5800 RPM) has 21 more horse power than 1984 Ford Sierra. (160 HP @ 5700 RPM). In normal driving conditions, 1979 BMW 728 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1979 BMW 728 weights approximately 290 kg more than 1984 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1979 BMW 728 (240 Nm @ 4200 RPM) has 24 more torque (in Nm) than 1984 Ford Sierra. (216 Nm @ 4300 RPM). This means 1979 BMW 728 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1979 BMW 728 | 1984 Ford Sierra | |
| Make | BMW | Ford |
| Model | 728 | Sierra |
| Year Released | 1979 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 2792 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 181 HP | 160 HP |
| Engine RPM | 5800 RPM | 5700 RPM |
| Torque | 240 Nm | 216 Nm |
| Torque RPM | 4200 RPM | 4300 RPM |
| Engine Bore Size | 86 mm | 93.1 mm |
| Engine Stroke Size | 80 mm | 68.5 mm |
| Engine Compression Ratio | 9.3:1 | 9.2:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1470 kg | 1180 kg |
| Vehicle Length | 4870 mm | 4430 mm |
| Vehicle Width | 1810 mm | 1730 mm |
| Vehicle Height | 1440 mm | 1370 mm |
| Wheelbase Size | 2800 mm | 2610 mm |
