2003 BMW 645 vs. 2004 Mazda B4000
To start off, 2004 Mazda B4000 is newer by 1 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 (321 HP @ 6100 RPM) has 113 more horse power than 2004 Mazda B4000. (208 HP @ 4000 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2004 Mazda B4000. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 228 kg more than 2004 Mazda B4000. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Mazda B4000 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 645. In wet, icy, snow, or gravel driving conditions, 2004 Mazda B4000 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, 2003 BMW 645 (450 Nm) has 140 more torque (in Nm) than 2004 Mazda B4000. (310 Nm). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2004 Mazda B4000.
Compare all specifications:
| 2003 BMW 645 | 2004 Mazda B4000 | |
| Make | BMW | Mazda |
| Model | 645 | B4000 |
| Year Released | 2003 | 2004 |
| Body Type | Convertible | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4031 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 321 HP | 208 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 450 Nm | 310 Nm |
| Engine Bore Size | 92 mm | 100 mm |
| Engine Stroke Size | 82.7 mm | 85 mm |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 3 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1895 kg | 1667 kg |
| Vehicle Length | 4830 mm | 5130 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1380 mm | 1720 mm |
| Wheelbase Size | 2790 mm | 3200 mm |
| Fuel Consumption | 8.5 L/100km | 12.4 L/100km |
| Fuel Consumption City | 16.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 11.5 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 70 L | 74 L |
