2003 BMW X3 vs. 1977 BMW 320
To start off, 2003 BMW X3 is newer by 26 year(s). Which means there will be less support and parts availability for 1977 BMW 320. In addition, the cost of maintenance, including insurance, on 1977 BMW 320 would be higher. At 2,492 cc (6 cylinders), 2003 BMW X3 is equipped with a bigger engine. In terms of performance, 2003 BMW X3 (185 HP) has 24 more horse power than 1977 BMW 320. (161 HP). In normal driving conditions, 2003 BMW X3 should accelerate faster than 1977 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X3 weights approximately 790 kg more than 1977 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1977 BMW 320. In wet, icy, snow, or gravel driving conditions, 2003 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. 2003 BMW X3 has automatic transmission and 1977 BMW 320 has manual transmission. 1977 BMW 320 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW X3 | 1977 BMW 320 | |
| Make | BMW | BMW |
| Model | X3 | 320 |
| Year Released | 2003 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1990 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 185 HP | 161 HP |
| Engine Bore Size | 84 mm | 88.9 mm |
| Engine Stroke Size | 75 mm | 80 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1840 kg | 1050 kg |
| Vehicle Length | 4570 mm | 4520 mm |
| Vehicle Width | 1860 mm | 1620 mm |
| Vehicle Height | 1680 mm | 1390 mm |
| Wheelbase Size | 2800 mm | 2570 mm |
