1977 BMW 728 vs. 2013 BMW 3 Series
To start off, 2013 BMW 3 Series is newer by 36 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 2,979 cc (6 cylinders), 2013 BMW 3 Series is equipped with a bigger engine. In terms of performance, 2013 BMW 3 Series (227 HP @ 6500 RPM) has 57 more horse power than 1977 BMW 728. (170 HP @ 6000 RPM) In normal driving conditions, 2013 BMW 3 Series should accelerate faster than 1977 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 3 Series weights approximately 89 kg more than 1977 BMW 728. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW 3 Series is all wheel drive (AWD), it will have significant more traction and grip than 1977 BMW 728. In wet, icy, snow, or gravel driving conditions, 2013 BMW 3 Series 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, 2013 BMW 3 Series (271 Nm @ 2750 RPM) has 36 more torque (in Nm) than 1977 BMW 728. (235 Nm @ 3700 RPM). This means 2013 BMW 3 Series will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 728. 2013 BMW 3 Series 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. 2013 BMW 3 Series will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1977 BMW 728 | 2013 BMW 3 Series | |
| Make | BMW | BMW |
| Model | 728 | 3 Series |
| Year Released | 1977 | 2013 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 170 HP | 227 HP |
| Engine RPM | 6000 RPM | 6500 RPM |
| Torque | 235 Nm | 271 Nm |
| Torque RPM | 3700 RPM | 2750 RPM |
| Engine Bore Size | 86 mm | 85 mm |
| Engine Stroke Size | 80 mm | 88 mm |
| Engine Compression Ratio | 9.0:1 | 10.7 :1 |
| Top Speed | 193 km/hour | 210 km/hour |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1536 kg | 1625 kg |
| Vehicle Length | 4870 mm | 4620 mm |
| Vehicle Width | 1810 mm | 1961 mm |
| Vehicle Height | 1440 mm | 1395 mm |
| Wheelbase Size | 2800 mm | 2760 mm |
| Fuel Tank Capacity | 85 L | 61 L |
