1998 BMW 728 vs. 2012 BMW 550
To start off, 2012 BMW 550 is newer by 14 year(s). Which means there will be less support and parts availability for 1998 BMW 728. In addition, the cost of maintenance, including insurance, on 1998 BMW 728 would be higher. At 4,400 cc (8 cylinders), 2012 BMW 550 is equipped with a bigger engine. In terms of performance, 2012 BMW 550 (400 HP @ 5500 RPM) has 210 more horse power than 1998 BMW 728. (190 HP @ 5500 RPM) In normal driving conditions, 2012 BMW 550 should accelerate faster than 1998 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 550 weights approximately 245 kg more than 1998 BMW 728. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 BMW 550 is all wheel drive (AWD), it will have significant more traction and grip than 1998 BMW 728. In wet, icy, snow, or gravel driving conditions, 2012 BMW 550 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, 2012 BMW 550 (609 Nm @ 1750 RPM) has 329 more torque (in Nm) than 1998 BMW 728. (280 Nm @ 3500 RPM). This means 2012 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 728.
Compare all specifications:
| 1998 BMW 728 | 2012 BMW 550 | |
| Make | BMW | BMW |
| Model | 728 | 550 |
| Year Released | 1998 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 4400 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 190 HP | 400 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 280 Nm | 609 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Drive Type | Rear | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1805 kg | 2050 kg |
| Vehicle Length | 4990 mm | 4899 mm |
| Vehicle Width | 1870 mm | 1860 mm |
| Vehicle Height | 1440 mm | 1464 mm |
| Wheelbase Size | 2940 mm | 2968 mm |
| Fuel Tank Capacity | 85 L | 70 L |
