1986 BMW 730 vs. 2005 BMW X3
To start off, 2005 BMW X3 is newer by 19 year(s). Which means there will be less support and parts availability for 1986 BMW 730. In addition, the cost of maintenance, including insurance, on 1986 BMW 730 would be higher. At 2,986 cc (6 cylinders), 1986 BMW 730 is equipped with a bigger engine. In terms of performance, 2005 BMW X3 (184 HP @ 4000 RPM) has 3 more horse power than 1986 BMW 730. (181 HP @ 5800 RPM) In normal driving conditions, 2005 BMW X3 should accelerate faster than 1986 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X3 weights approximately 325 kg more than 1986 BMW 730. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1986 BMW 730. In wet, icy, snow, or gravel driving conditions, 2005 BMW X3 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, 2005 BMW X3 (420 Nm @ 1500 RPM) has 160 more torque (in Nm) than 1986 BMW 730. (260 Nm @ 4000 RPM). This means 2005 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1986 BMW 730.
Compare all specifications:
| 1986 BMW 730 | 2005 BMW X3 | |
| Make | BMW | BMW |
| Model | 730 | X3 |
| Year Released | 1986 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 2977 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 184 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 260 Nm | 420 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1600 kg | 1925 kg |
| Vehicle Length | 4920 mm | 4570 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1680 mm |
| Wheelbase Size | 2840 mm | 2830 mm |
| Fuel Tank Capacity | 90 L | 67 L |
