1991 BMW 318 vs. 1977 BMW 728
To start off, 1991 BMW 318 is newer by 14 year(s). Which means there will be less support and parts availability for 1977 BMW 728. In addition, the cost of maintenance, including insurance, on 1977 BMW 728 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 30 more horse power than 1991 BMW 318. (140 HP @ 6000 RPM) In normal driving conditions, 1977 BMW 728 should accelerate faster than 1991 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 728 weights approximately 296 kg more than 1991 BMW 318. 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, 1977 BMW 728 (235 Nm @ 3700 RPM) has 60 more torque (in Nm) than 1991 BMW 318. (175 Nm @ 4500 RPM). This means 1977 BMW 728 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 318.
Compare all specifications:
| 1991 BMW 318 | 1977 BMW 728 | |
| Make | BMW | BMW |
| Model | 318 | 728 |
| Year Released | 1991 | 1977 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 2788 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 140 HP | 170 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 175 Nm | 235 Nm |
| Torque RPM | 4500 RPM | 3700 RPM |
| Engine Compression Ratio | 8.8:1 | 9.0:1 |
| Top Speed | 208 km/hour | 193 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1240 kg | 1536 kg |
| Vehicle Length | 4440 mm | 4870 mm |
| Vehicle Width | 1720 mm | 1810 mm |
| Vehicle Height | 1370 mm | 1440 mm |
| Wheelbase Size | 2710 mm | 2800 mm |
| Fuel Tank Capacity | 65 L | 85 L |
