2005 BMW X3 vs. 1977 BMW 320
To start off, 2005 BMW X3 is newer by 28 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 2,983 cc (6 cylinders), 2005 BMW X3 is equipped with a bigger engine. In terms of performance, 2005 BMW X3 (228 HP @ 5900 RPM) has 106 more horse power than 1977 BMW 320. (122 HP @ 6000 RPM). In normal driving conditions, 2005 BMW X3 should accelerate faster than 1977 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X3 weights approximately 715 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 2005 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, 2005 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. Let's talk about torque, 2005 BMW X3 (300 Nm @ 3500 RPM) has 140 more torque (in Nm) than 1977 BMW 320. (160 Nm @ 4000 RPM). This means 2005 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 320.
Compare all specifications:
| 2005 BMW X3 | 1977 BMW 320 | |
| Make | BMW | BMW |
| Model | X3 | 320 |
| Year Released | 2005 | 1977 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 1989 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 228 HP | 122 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 300 Nm | 160 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Compression Ratio | 10.0:1 | 9.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1120 kg |
| Vehicle Length | 4570 mm | 4360 mm |
| Vehicle Width | 1860 mm | 1620 mm |
| Vehicle Height | 1680 mm | 1390 mm |
| Wheelbase Size | 2730 mm | 2580 mm |
| Fuel Tank Capacity | 67 L | 52 L |
