2005 AC Cobra vs. 2006 Infiniti QX56
To start off, 2006 Infiniti QX56 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 AC Cobra. In addition, the cost of maintenance, including insurance, on 2005 AC Cobra would be higher. At 5,555 cc (8 cylinders), 2006 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2005 AC Cobra (350 HP @ 6500 RPM) has 35 more horse power than 2006 Infiniti QX56. (315 HP @ 4900 RPM). In normal driving conditions, 2005 AC Cobra should accelerate faster than 2006 Infiniti QX56. With that said, vehicle weight also plays an important factor in acceleration. 2006 Infiniti QX56 weights approximately 258 kg more than 2005 AC Cobra.
Because 2006 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2005 AC Cobra. In wet, icy, snow, or gravel driving conditions, 2006 Infiniti QX56 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, 2006 Infiniti QX56 (529 Nm @ 3600 RPM) has 129 more torque (in Nm) than 2005 AC Cobra. (400 Nm @ 4000 RPM). This means 2006 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2005 AC Cobra. 2006 Infiniti QX56 has automatic transmission and 2005 AC Cobra has manual transmission. 2005 AC Cobra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Infiniti QX56 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 AC Cobra | 2006 Infiniti QX56 | |
| Make | AC | Infiniti |
| Model | Cobra | QX56 |
| Year Released | 2005 | 2006 |
| Body Type | Roadster | SUV |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 5555 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 350 HP | 315 HP |
| Engine RPM | 6500 RPM | 4900 RPM |
| Torque | 400 Nm | 529 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 83 mm | 98 mm |
| Engine Stroke Size | 81 mm | 92 mm |
| Engine Compression Ratio | 8.0:1 | 9.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1062 kg | 1320 kg |
| Vehicle Length | 4210 mm | 5260 mm |
| Vehicle Width | 1750 mm | 2010 mm |
| Vehicle Height | 1210 mm | 1980 mm |
| Wheelbase Size | 2300 mm | 3140 mm |
