2005 AC Cobra vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra 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 5,996 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 AC Cobra (350 HP @ 6500 RPM) has 5 more horse power than 2006 GMC Sierra. (345 HP @ 5200 RPM). In normal driving conditions, 2005 AC Cobra should accelerate faster than 2006 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1416 kg more than 2005 AC Cobra.
Because 2006 GMC Sierra 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 GMC Sierra 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 GMC Sierra (515 Nm @ 4000 RPM) has 115 more torque (in Nm) than 2005 AC Cobra. (400 Nm @ 4000 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 AC Cobra.
Compare all specifications:
| 2005 AC Cobra | 2006 GMC Sierra | |
| Make | AC | GMC |
| Model | Cobra | Sierra |
| Year Released | 2005 | 2006 |
| Body Type | Roadster | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 5996 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 350 HP | 345 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 400 Nm | 515 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 102 mm |
| Engine Stroke Size | 81 mm | 92 mm |
| Engine Compression Ratio | 8.0:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1062 kg | 2478 kg |
| Vehicle Length | 4210 mm | 5850 mm |
| Vehicle Width | 1750 mm | 2000 mm |
| Vehicle Height | 1210 mm | 1910 mm |
| Wheelbase Size | 2300 mm | 3650 mm |
