2003 BMW 730 vs. 1984 BMW 323
To start off, 2003 BMW 730 is newer by 19 year(s). Which means there will be less support and parts availability for 1984 BMW 323. In addition, the cost of maintenance, including insurance, on 1984 BMW 323 would be higher. At 2,999 cc (6 cylinders), 2003 BMW 730 is equipped with a bigger engine. In terms of performance, 2003 BMW 730 (228 HP @ 5900 RPM) has 80 more horse power than 1984 BMW 323. (148 HP @ 6000 RPM). In normal driving conditions, 2003 BMW 730 should accelerate faster than 1984 BMW 323. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 730 weights approximately 700 kg more than 1984 BMW 323. 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, 2003 BMW 730 (300 Nm @ 3500 RPM) has 95 more torque (in Nm) than 1984 BMW 323. (205 Nm @ 4000 RPM). This means 2003 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1984 BMW 323. 2003 BMW 730 has automatic transmission and 1984 BMW 323 has manual transmission. 1984 BMW 323 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 730 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW 730 | 1984 BMW 323 | |
| Make | BMW | BMW |
| Model | 730 | 323 |
| Year Released | 2003 | 1984 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2999 cc | 2314 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 228 HP | 148 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 300 Nm | 205 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.1 mm | 80 mm |
| Engine Stroke Size | 90 mm | 76.8 mm |
| Engine Compression Ratio | 10.2:1 | 9.8:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1790 kg | 1090 kg |
| Vehicle Length | 5040 mm | 4330 mm |
| Vehicle Width | 1910 mm | 1650 mm |
| Vehicle Height | 1500 mm | 1390 mm |
| Wheelbase Size | 3000 mm | 2580 mm |
