2005 BMW X5 vs. 2006 Mazda RX-8
To start off, 2006 Mazda RX-8 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 BMW X5. In addition, the cost of maintenance, including insurance, on 2005 BMW X5 would be higher. At 2,926 cc (6 cylinders), 2005 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 Mazda RX-8 (228 HP @ 8200 RPM) has 13 more horse power than 2005 BMW X5. (215 HP @ 4000 RPM) In normal driving conditions, 2006 Mazda RX-8 should accelerate faster than 2005 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 742 kg more than 2006 Mazda RX-8.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Mazda RX-8. In wet, icy, snow, or gravel driving conditions, 2005 BMW X5 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, 2005 BMW X5 (520 Nm @ 2000 RPM) has 309 more torque (in Nm) than 2006 Mazda RX-8. (211 Nm @ 5500 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 Mazda RX-8.
Compare all specifications:
| 2005 BMW X5 | 2006 Mazda RX-8 | |
| Make | BMW | Mazda |
| Model | X5 | RX-8 |
| Year Released | 2005 | 2006 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 1308 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 215 HP | 228 HP |
| Engine RPM | 4000 RPM | 8200 RPM |
| Torque | 520 Nm | 211 Nm |
| Torque RPM | 2000 RPM | 5500 RPM |
| Engine Bore Size | 84 mm | 87.5 mm |
| Engine Stroke Size | 90 mm | 85 mm |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 210 km/hour | 235 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 6.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2170 kg | 1428 kg |
| Vehicle Length | 4670 mm | 4440 mm |
| Vehicle Width | 1880 mm | 1780 mm |
| Vehicle Height | 1720 mm | 1350 mm |
| Wheelbase Size | 2830 mm | 2710 mm |
| Fuel Consumption Overall | 8.6 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 93 L | 61 L |
