1977 BMW 728 vs. 1974 BMW Touring
To start off, 1977 BMW 728 is newer by 3 year(s). Which means there will be less support and parts availability for 1974 BMW Touring. In addition, the cost of maintenance, including insurance, on 1974 BMW Touring would be higher. At 2,788 cc (6 cylinders), 1977 BMW 728 is equipped with a bigger engine. In terms of performance, 1977 BMW 728 (170 HP @ 6000 RPM) has 85 more horse power than 1974 BMW Touring. (85 HP @ 5700 RPM). In normal driving conditions, 1977 BMW 728 should accelerate faster than 1974 BMW Touring. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 728 weights approximately 506 kg more than 1974 BMW Touring. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1977 BMW 728 (235 Nm @ 3700 RPM) has 105 more torque (in Nm) than 1974 BMW Touring. (130 Nm @ 3500 RPM). This means 1977 BMW 728 will have an easier job in driving up hills or pulling heavy equipment than 1974 BMW Touring.
Compare all specifications:
| 1977 BMW 728 | 1974 BMW Touring | |
| Make | BMW | BMW |
| Model | 728 | Touring |
| Year Released | 1977 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 1572 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 170 HP | 85 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 235 Nm | 130 Nm |
| Torque RPM | 3700 RPM | 3500 RPM |
| Engine Bore Size | 86 mm | 84 mm |
| Engine Stroke Size | 80 mm | 71 mm |
| Engine Compression Ratio | 9.0:1 | 8.6:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1536 kg | 1030 kg |
| Vehicle Length | 4870 mm | 4120 mm |
| Vehicle Width | 1810 mm | 1600 mm |
| Vehicle Height | 1440 mm | 1390 mm |
| Wheelbase Size | 2800 mm | 2510 mm |
