2003 Mazda 6 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 10 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 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (439 HP @ 6000 RPM) has 300 more horse power than 2003 Mazda 6. (139 HP @ 6000 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2003 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 670 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 2013 BMW 6 series is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2013 BMW 6 series. However, in wet, icy, snow, or gravel driving conditions, 2003 Mazda 6, being front wheel drive (FWD), will offer much better control with better grip. 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, 2013 BMW 6 series (651 Nm @ 4500 RPM) has 470 more torque (in Nm) than 2003 Mazda 6. (181 Nm @ 4500 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 6.
Compare all specifications:
| 2003 Mazda 6 | 2013 BMW 6 series | |
| Make | Mazda | BMW |
| Model | 6 | 6 series |
| Year Released | 2003 | 2013 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1989 cc | 4395 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 139 HP | 439 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 181 Nm | 651 Nm |
| Torque RPM | 4500 RPM | 4500 RPM |
| Engine Compression Ratio | 11.0:1 | 10.0 :1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 206 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.9 seconds | 4.5 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1380 kg | 2050 kg |
| Vehicle Length | 4690 mm | 4897 mm |
| Vehicle Width | 1790 mm | 1895 mm |
| Vehicle Height | 1440 mm | 1364 mm |
| Wheelbase Size | 2680 mm | 2855 mm |
| Fuel Tank Capacity | 64 L | 70 L |
