1991 BMW 325 vs. 1988 BMW 730
To start off, 1991 BMW 325 is newer by 3 year(s). Which means there will be less support and parts availability for 1988 BMW 730. In addition, the cost of maintenance, including insurance, on 1988 BMW 730 would be higher. At 2,984 cc (6 cylinders), 1988 BMW 730 is equipped with a bigger engine. In terms of performance, 1988 BMW 730 (185 HP @ 5800 RPM) has 72 more horse power than 1991 BMW 325. (113 HP @ 4800 RPM) In normal driving conditions, 1988 BMW 730 should accelerate faster than 1991 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 1988 BMW 730 weights approximately 166 kg more than 1991 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1988 BMW 730 (260 Nm @ 4000 RPM) has 40 more torque (in Nm) than 1991 BMW 325. (220 Nm @ 1900 RPM). This means 1988 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 325.
Compare all specifications:
| 1991 BMW 325 | 1988 BMW 730 | |
| Make | BMW | BMW |
| Model | 325 | 730 |
| Year Released | 1991 | 1988 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2443 cc | 2984 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 185 HP |
| Engine RPM | 4800 RPM | 5800 RPM |
| Torque | 220 Nm | 260 Nm |
| Torque RPM | 1900 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 89 mm |
| Engine Stroke Size | 81 mm | 80 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1434 kg | 1600 kg |
| Vehicle Length | 4440 mm | 4920 mm |
| Vehicle Width | 1710 mm | 1850 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2710 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 90 L |
