2005 BMW 330 vs. 2003 Mazda Roadster
To start off, 2005 BMW 330 is newer by 2 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), 2005 BMW 330 is equipped with a bigger engine. In terms of performance, 2005 BMW 330 (254 HP @ 6600 RPM) has 97 more horse power than 2003 Mazda Roadster. (157 HP @ 7000 RPM). In normal driving conditions, 2005 BMW 330 should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 330 weights approximately 465 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.
Let's talk about torque, 2005 BMW 330 (300 Nm @ 2500 RPM) has 130 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 2005 BMW 330 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2005 BMW 330 | 2003 Mazda Roadster | |
| Make | BMW | Mazda |
| Model | 330 | Roadster |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1839 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 254 HP | 157 HP |
| Engine RPM | 6600 RPM | 7000 RPM |
| Torque | 300 Nm | 170 Nm |
| Torque RPM | 2500 RPM | 5500 RPM |
| Engine Bore Size | 85 mm | 83 mm |
| Engine Stroke Size | 88 mm | 85 mm |
| Engine Compression Ratio | 10.7:1 | 10.5:1 |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1525 kg | 1060 kg |
| Vehicle Length | 4530 mm | 3960 mm |
| Vehicle Width | 1820 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1240 mm |
| Wheelbase Size | 2770 mm | 2370 mm |
| Fuel Tank Capacity | 55 L | 48 L |
