1981 BMW 745 vs. 2007 BMW 320
To start off, 2007 BMW 320 is newer by 26 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 104 more horse power than 2007 BMW 320. (148 HP @ 6200 RPM). In normal driving conditions, 1981 BMW 745 should accelerate faster than 2007 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 165 kg more than 2007 BMW 320. 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 180 more torque (in Nm) than 2007 BMW 320. (200 Nm @ 3600 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 320. 2007 BMW 320 has automatic transmission and 1981 BMW 745 has manual transmission. 1981 BMW 745 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 320 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 745 | 2007 BMW 320 | |
| Make | BMW | BMW |
| Model | 745 | 320 |
| Year Released | 1981 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3430 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 252 HP | 148 HP |
| Engine RPM | 5200 RPM | 6200 RPM |
| Torque | 380 Nm | 200 Nm |
| Torque RPM | 2200 RPM | 3600 RPM |
| Engine Bore Size | 92 mm | 84 mm |
| Engine Stroke Size | 86 mm | 90 mm |
| Engine Compression Ratio | 8.0:1 | 10.5:1 |
| Top Speed | 220 km/hour | 215 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1590 kg | 1425 kg |
| Vehicle Length | 4870 mm | 4530 mm |
| Vehicle Width | 1810 mm | 1430 mm |
| Vehicle Height | 1440 mm | 1820 mm |
| Wheelbase Size | 2800 mm | 2770 mm |
| Fuel Tank Capacity | 100 L | 63 L |
