2007 BMW 523 vs. 1977 BMW 728
To start off, 2007 BMW 523 is newer by 30 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, 2007 BMW 523 (175 HP @ 5800 RPM) has 5 more horse power than 1977 BMW 728. (170 HP @ 6000 RPM). In normal driving conditions, 2007 BMW 523 should accelerate faster than 1977 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 728 weights approximately 36 kg more than 2007 BMW 523.
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 5 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 1977 BMW 728 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523. 2007 BMW 523 has automatic transmission and 1977 BMW 728 has manual transmission. 1977 BMW 728 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 523 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 523 | 1977 BMW 728 | |
| Make | BMW | BMW |
| Model | 523 | 728 |
| Year Released | 2007 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2788 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 175 HP | 170 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 230 Nm | 235 Nm |
| Torque RPM | 3500 RPM | 3700 RPM |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 78.8 mm | 80 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Top Speed | 230 km/hour | 193 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1500 kg | 1536 kg |
| Vehicle Length | 4850 mm | 4870 mm |
| Vehicle Width | 1470 mm | 1810 mm |
| Vehicle Height | 1850 mm | 1440 mm |
| Wheelbase Size | 2890 mm | 2800 mm |
| Fuel Tank Capacity | 70 L | 85 L |
