2004 BMW 645 vs. 2012 Mazda 6
To start off, 2012 Mazda 6 is newer by 8 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 56 more horse power than 2012 Mazda 6. (272 HP @ 6250 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 2012 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 69 kg more than 2012 Mazda 6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW 645 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 2004 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2012 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, 2004 BMW 645 (450 Nm @ 3600 RPM) has 86 more torque (in Nm) than 2012 Mazda 6. (364 Nm @ 4250 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2012 Mazda 6. 2012 Mazda 6 has automatic transmission and 2004 BMW 645 has manual transmission. 2004 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 Mazda 6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 BMW 645 | 2012 Mazda 6 | |
| Make | BMW | Mazda |
| Model | 645 | 6 |
| Year Released | 2004 | 2012 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3700 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 272 HP |
| Engine RPM | 6100 RPM | 6250 RPM |
| Torque | 450 Nm | 364 Nm |
| Torque RPM | 3600 RPM | 4250 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | 6-speed shiftable automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1690 kg | 1621 kg |
| Vehicle Length | 4830 mm | 4755 mm |
| Vehicle Width | 1860 mm | 1795 mm |
| Vehicle Height | 1380 mm | 1440 mm |
| Wheelbase Size | 2830 mm | 2789 mm |
| Fuel Tank Capacity | 70 L | 70 L |
