2006 Alpina B3 vs. 2003 Mazda RX-8
To start off, 2006 Alpina B3 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Mazda RX-8. In addition, the cost of maintenance, including insurance, on 2003 Mazda RX-8 would be higher. At 3,346 cc (6 cylinders), 2006 Alpina B3 is equipped with a bigger engine. In terms of performance, 2006 Alpina B3 (301 HP @ 6300 RPM) has 73 more horse power than 2003 Mazda RX-8. (228 HP @ 8200 RPM). In normal driving conditions, 2006 Alpina B3 should accelerate faster than 2003 Mazda RX-8. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alpina B3 weights approximately 201 kg more than 2003 Mazda RX-8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2006 Alpina B3 (362 Nm @ 4800 RPM) has 151 more torque (in Nm) than 2003 Mazda RX-8. (211 Nm @ 5500 RPM). This means 2006 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda RX-8.
Compare all specifications:
| 2006 Alpina B3 | 2003 Mazda RX-8 | |
| Make | Alpina | Mazda |
| Model | B3 | RX-8 |
| Year Released | 2006 | 2003 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 1308 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 301 HP | 228 HP |
| Engine RPM | 6300 RPM | 8200 RPM |
| Torque | 362 Nm | 211 Nm |
| Torque RPM | 4800 RPM | 5500 RPM |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 264 km/hour | 235 km/hour |
| Acceleration 0-100mph | 5.8 seconds | 6.7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1626 kg | 1425 kg |
| Vehicle Length | 4490 mm | 4440 mm |
| Vehicle Width | 1760 mm | 1780 mm |
| Vehicle Height | 1360 mm | 1350 mm |
| Wheelbase Size | 2730 mm | 2710 mm |
| Fuel Consumption Overall | 11.2 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 63 L | 61 L |
