2003 Alpina B3 vs. 2003 Mazda Roadster
To start off, both 2003 Alpina B3 and 2003 Mazda Roadster were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,301 cc (6 cylinders), 2003 Alpina B3 is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (277 HP @ 6300 RPM) has 120 more horse power than 2003 Mazda Roadster. (157 HP @ 7000 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina B3 weights approximately 500 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 2003 Alpina B3 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, 2003 Alpina B3 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 Alpina B3 (335 Nm @ 4500 RPM) has 165 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 2003 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2003 Alpina B3 | 2003 Mazda Roadster | |
| Make | Alpina | Mazda |
| Model | B3 | Roadster |
| Year Released | 2003 | 2003 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3301 cc | 1839 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 277 HP | 157 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 335 Nm | 170 Nm |
| Torque RPM | 4500 RPM | 5500 RPM |
| Engine Bore Size | 86.4 mm | 83 mm |
| Engine Stroke Size | 93.9 mm | 85 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1060 kg |
| Vehicle Length | 4480 mm | 3960 mm |
| Vehicle Width | 1750 mm | 1690 mm |
| Vehicle Height | 1420 mm | 1240 mm |
| Fuel Tank Capacity | 63 L | 48 L |
