2008 Alpina B5 vs. 2003 Mazda 6
To start off, 2008 Alpina B5 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Mazda 6. In addition, the cost of maintenance, including insurance, on 2003 Mazda 6 would be higher. At 4,398 cc (8 cylinders), 2008 Alpina B5 is equipped with a bigger engine. In terms of performance, 2008 Alpina B5 (493 HP @ 5500 RPM) has 334 more horse power than 2003 Mazda 6. (159 HP @ 6500 RPM). In normal driving conditions, 2008 Alpina B5 should accelerate faster than 2003 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Alpina B5 weights approximately 115 kg more than 2003 Mazda 6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Mazda 6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Alpina B5. In wet, icy, snow, or gravel driving conditions, 2003 Mazda 6 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 Alpina B5 (700 Nm @ 4250 RPM) has 495 more torque (in Nm) than 2003 Mazda 6. (205 Nm @ 4000 RPM). This means 2008 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 6.
Compare all specifications:
| 2008 Alpina B5 | 2003 Mazda 6 | |
| Make | Alpina | Mazda |
| Model | B5 | 6 |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2261 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 493 HP | 159 HP |
| Engine RPM | 5500 RPM | 6500 RPM |
| Torque | 700 Nm | 205 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 87.5 mm |
| Engine Stroke Size | 82.7 mm | 94 mm |
| Engine Compression Ratio | 9.0:1 | 10.6:1 |
| Top Speed | 314 km/hour | 189 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 12.3 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1720 kg | 1605 kg |
| Vehicle Length | 4850 mm | 4710 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2890 mm | 2620 mm |
| Fuel Consumption Overall | 12.3 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 70 L | 62 L |
