2003 Infiniti M vs. 2004 Mazda MX-5 Miata
To start off, 2004 Mazda MX-5 Miata is newer by 1 year(s). Which means there will be less support and parts availability for 2003 Infiniti M. In addition, the cost of maintenance, including insurance, on 2003 Infiniti M would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti M is equipped with a bigger engine. In terms of performance, 2003 Infiniti M (340 HP @ 6400 RPM) has 162 more horse power than 2004 Mazda MX-5 Miata. (178 HP @ 4000 RPM). In normal driving conditions, 2003 Infiniti M should accelerate faster than 2004 Mazda MX-5 Miata. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti M weights approximately 600 kg more than 2004 Mazda MX-5 Miata. 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, 2003 Infiniti M (451 Nm) has 231 more torque (in Nm) than 2004 Mazda MX-5 Miata. (220 Nm). This means 2003 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2004 Mazda MX-5 Miata.
Compare all specifications:
| 2003 Infiniti M | 2004 Mazda MX-5 Miata | |
| Make | Infiniti | Mazda |
| Model | M | MX-5 Miata |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 1835 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 178 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 451 Nm | 220 Nm |
| Engine Bore Size | 93 mm | 83 mm |
| Engine Stroke Size | 82.7 mm | 85 mm |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1747 kg | 1147 kg |
| Vehicle Length | 5020 mm | 3960 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1470 mm | 1230 mm |
| Wheelbase Size | 2810 mm | 2270 mm |
| Fuel Tank Capacity | 79 L | 48 L |
