1998 BMW 728 vs. 2003 BMW X5
To start off, 2003 BMW X5 is newer by 5 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 4,398 cc (8 cylinders), 2003 BMW X5 is equipped with a bigger engine. In terms of performance, 2003 BMW X5 (338 HP @ 6100 RPM) has 148 more horse power than 1998 BMW 728. (190 HP @ 5500 RPM) In normal driving conditions, 2003 BMW X5 should accelerate faster than 1998 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X5 weights approximately 390 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 2003 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1998 BMW 728. In wet, icy, snow, or gravel driving conditions, 2003 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, 2003 BMW X5 (400 Nm @ 3700 RPM) has 120 more torque (in Nm) than 1998 BMW 728. (280 Nm @ 3500 RPM). This means 2003 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 728.
Compare all specifications:
| 1998 BMW 728 | 2003 BMW X5 | |
| Make | BMW | BMW |
| Model | 728 | X5 |
| Year Released | 1998 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 190 HP | 338 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 280 Nm | 400 Nm |
| Torque RPM | 3500 RPM | 3700 RPM |
| Acceleration 0-100mph | 9.6 seconds | 7 seconds |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1805 kg | 2195 kg |
| Vehicle Length | 4990 mm | 4670 mm |
| Vehicle Width | 1870 mm | 1880 mm |
| Vehicle Height | 1440 mm | 1720 mm |
| Wheelbase Size | 2940 mm | 2730 mm |
| Fuel Tank Capacity | 85 L | 93 L |
