2003 AC Cobra vs. 2005 Infiniti M
To start off, 2005 Infiniti M is newer by 2 year(s). Which means there will be less support and parts availability for 2003 AC Cobra. In addition, the cost of maintenance, including insurance, on 2003 AC Cobra would be higher. At 3,506 cc (8 cylinders), 2003 AC Cobra is equipped with a bigger engine. In terms of performance, 2003 AC Cobra (350 HP @ 6500 RPM) has 74 more horse power than 2005 Infiniti M. (276 HP @ 6200 RPM). In normal driving conditions, 2003 AC Cobra should accelerate faster than 2005 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti M weights approximately 753 kg more than 2003 AC Cobra.
Because 2005 Infiniti M is four wheel drive (4WD), it will have significant more traction and grip than 2003 AC Cobra. In wet, icy, snow, or gravel driving conditions, 2005 Infiniti M 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 AC Cobra (400 Nm @ 4000 RPM) has 34 more torque (in Nm) than 2005 Infiniti M. (366 Nm @ 4800 RPM). This means 2003 AC Cobra will have an easier job in driving up hills or pulling heavy equipment than 2005 Infiniti M. 2005 Infiniti M has automatic transmission and 2003 AC Cobra has manual transmission. 2003 AC Cobra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Infiniti M will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 AC Cobra | 2005 Infiniti M | |
| Make | AC | Infiniti |
| Model | Cobra | M |
| Year Released | 2003 | 2005 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 350 HP | 276 HP |
| Engine RPM | 6500 RPM | 6200 RPM |
| Torque | 400 Nm | 366 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Engine Bore Size | 83 mm | 96.1 mm |
| Engine Stroke Size | 81 mm | 81 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1062 kg | 1815 kg |
| Vehicle Length | 4210 mm | 4900 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1210 mm | 1520 mm |
| Wheelbase Size | 2300 mm | 2880 mm |
