2007 BMW X3 vs. 2004 BMW 320
To start off, 2007 BMW X3 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW 320. In addition, the cost of maintenance, including insurance, on 2004 BMW 320 would be higher. At 2,996 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (268 HP @ 6600 RPM) has 120 more horse power than 2004 BMW 320. (148 HP @ 4000 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 2004 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 135 kg more than 2004 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 320. In wet, icy, snow, or gravel driving conditions, 2007 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, 2004 BMW 320 (350 Nm @ 2000 RPM) has 35 more torque (in Nm) than 2007 BMW X3. (315 Nm @ 2750 RPM). This means 2004 BMW 320 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3. 2007 BMW X3 has automatic transmission and 2004 BMW 320 has manual transmission. 2004 BMW 320 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 2004 BMW 320 | |
| Make | BMW | BMW |
| Model | X3 | 320 |
| Year Released | 2007 | 2004 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 268 HP | 148 HP |
| Engine RPM | 6600 RPM | 4000 RPM |
| Torque | 315 Nm | 350 Nm |
| Torque RPM | 2750 RPM | 2000 RPM |
| Engine Bore Size | 85 mm | 84 mm |
| Engine Stroke Size | 88 mm | 90 mm |
| Engine Compression Ratio | 10.7:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 210 km/hour | 211 km/hour |
| Acceleration 0-100mph | 7.8 seconds | 9.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1815 kg | 1680 kg |
| Vehicle Length | 4570 mm | 4490 mm |
| Vehicle Width | 1680 mm | 1760 mm |
| Vehicle Height | 1860 mm | 1380 mm |
| Wheelbase Size | 2800 mm | 2730 mm |
| Fuel Tank Capacity | 67 L | 63 L |
