2004 Infiniti Q45 vs. 2007 Mazda RX-8
To start off, 2007 Mazda RX-8 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2004 Infiniti Q45 would be higher. At 4,490 cc (8 cylinders), 2004 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2004 Infiniti Q45 (340 HP) has 151 more horse power than 2007 Mazda RX-8. (189 HP). In normal driving conditions, 2004 Infiniti Q45 should accelerate faster than 2007 Mazda RX-8. With that said, vehicle weight also plays an important factor in acceleration. 2004 Infiniti Q45 weights approximately 384 kg more than 2007 Mazda RX-8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 Infiniti Q45 (452 Nm) has 231 more torque (in Nm) than 2007 Mazda RX-8. (221 Nm). This means 2004 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mazda RX-8. 2004 Infiniti Q45 has automatic transmission and 2007 Mazda RX-8 has manual transmission. 2007 Mazda RX-8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Infiniti Q45 | 2007 Mazda RX-8 | |
| Make | Infiniti | Mazda |
| Model | Q45 | RX-8 |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4490 cc | 1308 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 340 HP | 189 HP |
| Torque | 452 Nm | 221 Nm |
| Engine Bore Size | 93 mm | 78 mm |
| Engine Stroke Size | 83 mm | 83.6 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1804 kg | 1420 kg |
| Vehicle Length | 5080 mm | 4440 mm |
| Vehicle Width | 1850 mm | 1780 mm |
| Vehicle Height | 1500 mm | 1350 mm |
| Wheelbase Size | 2880 mm | 2710 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 81 L | 61 L |
