2003 BMW M3 vs. 2009 BMW X3
To start off, 2009 BMW X3 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 BMW M3. In addition, the cost of maintenance, including insurance, on 2003 BMW M3 would be higher. At 3,168 cc (6 cylinders), 2003 BMW M3 is equipped with a bigger engine. In terms of performance, 2003 BMW M3 (342 HP @ 7900 RPM) has 153 more horse power than 2009 BMW X3. (189 HP @ 6000 RPM). In normal driving conditions, 2003 BMW M3 should accelerate faster than 2009 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X3 weights approximately 430 kg more than 2003 BMW M3.
Because 2009 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW M3. In wet, icy, snow, or gravel driving conditions, 2009 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, 2003 BMW M3 (350 Nm @ 4900 RPM) has 105 more torque (in Nm) than 2009 BMW X3. (245 Nm @ 3500 RPM). This means 2003 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X3.
Compare all specifications:
| 2003 BMW M3 | 2009 BMW X3 | |
| Make | BMW | BMW |
| Model | M3 | X3 |
| Year Released | 2003 | 2009 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 3168 cc | 2494 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 189 HP |
| Engine RPM | 7900 RPM | 6000 RPM |
| Torque | 350 Nm | 245 Nm |
| Torque RPM | 4900 RPM | 3500 RPM |
| Engine Bore Size | 87 mm | 84.1 mm |
| Engine Stroke Size | 91 mm | 75 mm |
| Engine Compression Ratio | 11.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 4.9 seconds | 8.9 seconds |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1385 kg | 1815 kg |
| Vehicle Length | 4500 mm | 4570 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1370 mm | 1680 mm |
| Wheelbase Size | 2730 mm | 2800 mm |
| Fuel Consumption Overall | 11.4 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 63 L | 67 L |
