2003 Mazda 6 vs. 2008 BMW 630
To start off, 2008 BMW 630 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 2,994 cc (6 cylinders), 2008 BMW 630 is equipped with a bigger engine. In terms of performance, 2008 BMW 630 (254 HP @ 6600 RPM) has 94 more horse power than 2003 Mazda 6. (160 HP @ 6500 RPM) In normal driving conditions, 2008 BMW 630 should accelerate faster than 2003 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mazda 6 weights approximately 40 kg more than 2008 BMW 630.
Because 2003 Mazda 6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 630. 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 BMW 630 (300 Nm @ 2500 RPM) has 95 more torque (in Nm) than 2003 Mazda 6. (205 Nm @ 4000 RPM). This means 2008 BMW 630 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 6.
Compare all specifications:
| 2003 Mazda 6 | 2008 BMW 630 | |
| Make | Mazda | BMW |
| Model | 6 | 630 |
| Year Released | 2003 | 2008 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2261 cc | 2994 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 160 HP | 254 HP |
| Engine RPM | 6500 RPM | 6600 RPM |
| Torque | 205 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 87.5 mm | 85 mm |
| Engine Stroke Size | 94 mm | 88 mm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 190 km/hour | 250 km/hour |
| Acceleration 0-100mph | 12.3 seconds | 6.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1605 kg | 1565 kg |
| Vehicle Length | 4710 mm | 4830 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1500 mm | 1380 mm |
| Wheelbase Size | 2680 mm | 2790 mm |
| Fuel Tank Capacity | 62 L | 70 L |
