2008 BMW X3 vs. 2003 Mazda Roadster
To start off, 2008 BMW X3 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Mazda Roadster. In addition, the cost of maintenance, including insurance, on 2003 Mazda Roadster would be higher. At 2,979 cc (6 cylinders), 2008 BMW X3 is equipped with a bigger engine. In terms of performance, 2008 BMW X3 (228 HP @ 5900 RPM) has 105 more horse power than 2003 Mazda Roadster. (123 HP @ 6500 RPM). In normal driving conditions, 2008 BMW X3 should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X3 weights approximately 805 kg more than 2003 Mazda Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Mazda Roadster. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 BMW X3 (300 Nm @ 3500 RPM) has 158 more torque (in Nm) than 2003 Mazda Roadster. (142 Nm @ 5000 RPM). This means 2008 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2008 BMW X3 | 2003 Mazda Roadster | |
| Make | BMW | Mazda |
| Model | X3 | Roadster |
| Year Released | 2008 | 2003 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 228 HP | 123 HP |
| Engine RPM | 5900 RPM | 6500 RPM |
| Torque | 300 Nm | 142 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Compression Ratio | 10.0:1 | 9.4:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1030 kg |
| Vehicle Length | 4570 mm | 3960 mm |
| Vehicle Width | 1860 mm | 1690 mm |
| Vehicle Height | 1680 mm | 1240 mm |
| Wheelbase Size | 2800 mm | 2270 mm |
| Fuel Tank Capacity | 67 L | 48 L |
