2003 BMW 645 vs. 2012 Mazda 3
To start off, 2012 Mazda 3 is newer by 9 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (325 HP @ 6100 RPM) has 158 more horse power than 2012 Mazda 3. (167 HP @ 6000 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2012 Mazda 3. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 307 kg more than 2012 Mazda 3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 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 2003 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2012 Mazda 3, 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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 222 more torque (in Nm) than 2012 Mazda 3. (228 Nm @ 4000 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2012 Mazda 3.
Compare all specifications:
| 2003 BMW 645 | 2012 Mazda 3 | |
| Make | BMW | Mazda |
| Model | 645 | 3 |
| Year Released | 2003 | 2012 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2500 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 325 HP | 167 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 450 Nm | 228 Nm |
| Torque RPM | 3600 RPM | 4000 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1690 kg | 1383 kg |
| Vehicle Length | 4830 mm | 4506 mm |
| Vehicle Width | 1860 mm | 1755 mm |
| Vehicle Height | 1380 mm | 1471 mm |
| Wheelbase Size | 2890 mm | 2639 mm |
| Fuel Consumption Highway | 8.6 L/100km | 8.4 L/100km |
| Fuel Consumption City | 17.2 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
