2005 Ford Shelby GR-1 Concept vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Ford Shelby GR-1 Concept. In addition, the cost of maintenance, including insurance, on 2005 Ford Shelby GR-1 Concept would be higher. At 6,392 cc (10 cylinders), 2005 Ford Shelby GR-1 Concept is equipped with a bigger engine. In terms of performance, 2005 Ford Shelby GR-1 Concept (605 HP @ 6750 RPM) has 290 more horse power than 2007 GMC Sierra. (315 HP @ 5200 RPM). In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 2007 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 666 kg more than 2005 Ford Shelby GR-1 Concept.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2005 Ford Shelby GR-1 Concept. In wet, icy, snow, or gravel driving conditions, 2007 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, 2005 Ford Shelby GR-1 Concept (679 Nm @ 5500 RPM) has 221 more torque (in Nm) than 2007 GMC Sierra. (458 Nm @ 4400 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 2007 GMC Sierra. 2007 GMC Sierra has automatic transmission and 2005 Ford Shelby GR-1 Concept has manual transmission. 2005 Ford Shelby GR-1 Concept will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Ford Shelby GR-1 Concept | 2007 GMC Sierra | |
| Make | Ford | GMC |
| Model | Shelby GR-1 Concept | Sierra |
| Year Released | 2005 | 2007 |
| Body Type | Coupe | Pickup |
| Engine Position | Front | Front |
| Engine Size | 6392 cc | 5357 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 605 HP | 315 HP |
| Engine RPM | 6750 RPM | 5200 RPM |
| Torque | 679 Nm | 458 Nm |
| Torque RPM | 5500 RPM | 4400 RPM |
| Engine Bore Size | 93.1 mm | 96 mm |
| Engine Stroke Size | 94 mm | 92 mm |
| Engine Compression Ratio | 10.8:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 6 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1769 kg | 2435 kg |
| Vehicle Length | 4420 mm | 6320 mm |
| Vehicle Width | 1900 mm | 2040 mm |
| Vehicle Height | 1170 mm | 1880 mm |
| Wheelbase Size | 2550 mm | 4010 mm |
| Fuel Tank Capacity | 132 L | 129 L |
