1991 BMW 325 vs. 1981 BMW 745
To start off, 1991 BMW 325 is newer by 10 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 3,430 cc (6 cylinders), 1981 BMW 745 is equipped with a bigger engine. In terms of performance, 1981 BMW 745 (252 HP @ 5200 RPM) has 139 more horse power than 1991 BMW 325. (113 HP @ 4800 RPM) In normal driving conditions, 1981 BMW 745 should accelerate faster than 1991 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 156 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, 1981 BMW 745 (380 Nm @ 2200 RPM) has 160 more torque (in Nm) than 1991 BMW 325. (220 Nm @ 1900 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 325.
Compare all specifications:
| 1991 BMW 325 | 1981 BMW 745 | |
| Make | BMW | BMW |
| Model | 325 | 745 |
| Year Released | 1991 | 1981 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2443 cc | 3430 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 252 HP |
| Engine RPM | 4800 RPM | 5200 RPM |
| Torque | 220 Nm | 380 Nm |
| Torque RPM | 1900 RPM | 2200 RPM |
| Engine Bore Size | 80 mm | 92 mm |
| Engine Stroke Size | 81 mm | 86 mm |
| 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 | 1590 kg |
| Vehicle Length | 4440 mm | 4870 mm |
| Vehicle Width | 1710 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1440 mm |
| Wheelbase Size | 2710 mm | 2800 mm |
| Fuel Tank Capacity | 70 L | 100 L |
