2009 BMW X5 vs. 2003 Mazda Roadster
To start off, 2009 BMW X5 is newer by 6 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 4,799 cc (8 cylinders), 2009 BMW X5 is equipped with a bigger engine. In terms of performance, 2009 BMW X5 (350 HP @ 6300 RPM) has 227 more horse power than 2003 Mazda Roadster. (123 HP @ 6500 RPM). In normal driving conditions, 2009 BMW X5 should accelerate faster than 2003 Mazda Roadster.
Because 2009 BMW X5 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, 2009 BMW X5 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, 2009 BMW X5 (475 Nm @ 3400 RPM) has 333 more torque (in Nm) than 2003 Mazda Roadster. (142 Nm @ 5000 RPM). This means 2009 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster. 2009 BMW X5 has automatic transmission and 2003 Mazda Roadster has manual transmission. 2003 Mazda Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW X5 | 2003 Mazda Roadster | |
| Make | BMW | Mazda |
| Model | X5 | Roadster |
| Year Released | 2009 | 2003 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 350 HP | 123 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 475 Nm | 142 Nm |
| Torque RPM | 3400 RPM | 5000 RPM |
| Engine Bore Size | 93 mm | 78 mm |
| Engine Stroke Size | 88.3 mm | 83.6 mm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4860 mm | 3960 mm |
| Vehicle Width | 1940 mm | 1690 mm |
| Vehicle Height | 1770 mm | 1240 mm |
| Wheelbase Size | 2940 mm | 2270 mm |
| Fuel Tank Capacity | 85 L | 48 L |
