1979 BMW 728 vs. 2011 BMW X5
To start off, 2011 BMW X5 is newer by 32 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 3,000 cc (6 cylinders), 2011 BMW X5 is equipped with a bigger engine. In terms of performance, 2011 BMW X5 (300 HP @ 5800 RPM) has 119 more horse power than 1979 BMW 728. (181 HP @ 5800 RPM) In normal driving conditions, 2011 BMW X5 should accelerate faster than 1979 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X5 weights approximately 780 kg more than 1979 BMW 728. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 BMW X5 is all wheel drive (AWD), it will have significant more traction and grip than 1979 BMW 728. In wet, icy, snow, or gravel driving conditions, 2011 BMW X5 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, 2011 BMW X5 (406 Nm @ 1200 RPM) has 166 more torque (in Nm) than 1979 BMW 728. (240 Nm @ 4200 RPM). This means 2011 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 728. 2011 BMW X5 has automatic transmission and 1979 BMW 728 has manual transmission. 1979 BMW 728 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1979 BMW 728 | 2011 BMW X5 | |
| Make | BMW | BMW |
| Model | 728 | X5 |
| Year Released | 1979 | 2011 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 300 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 240 Nm | 406 Nm |
| Torque RPM | 4200 RPM | 1200 RPM |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1470 kg | 2250 kg |
| Vehicle Length | 4870 mm | 4857 mm |
| Vehicle Width | 1810 mm | 1933 mm |
| Vehicle Height | 1440 mm | 1776 mm |
| Wheelbase Size | 2800 mm | 2934 mm |
| Fuel Tank Capacity | 100 L | 85 L |
