2003 GMC Sierra vs. 2007 Rolls-Royce Phantom
To start off, 2007 Rolls-Royce Phantom is newer by 4 year(s). Which means there will be less support and parts availability for 2003 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2003 GMC Sierra would be higher. At 6,749 cc (12 cylinders), 2007 Rolls-Royce Phantom is equipped with a bigger engine. In terms of performance, 2007 Rolls-Royce Phantom (455 HP @ 5350 RPM) has 134 more horse power than 2003 GMC Sierra. (321 HP @ 5000 RPM) In normal driving conditions, 2007 Rolls-Royce Phantom should accelerate faster than 2003 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Rolls-Royce Phantom weights approximately 225 kg more than 2003 GMC Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2007 Rolls-Royce Phantom. In wet, icy, snow, or gravel driving conditions, 2003 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, 2007 Rolls-Royce Phantom (720 Nm @ 3500 RPM) has 350 more torque (in Nm) than 2003 GMC Sierra. (370 Nm @ 4000 RPM). This means 2007 Rolls-Royce Phantom will have an easier job in driving up hills or pulling heavy equipment than 2003 GMC Sierra. 2003 GMC Sierra has automatic transmission and 2007 Rolls-Royce Phantom has manual transmission. 2007 Rolls-Royce Phantom will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 GMC Sierra | 2007 Rolls-Royce Phantom | |
| Make | GMC | Rolls-Royce |
| Model | Sierra | Phantom |
| Year Released | 2003 | 2007 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5967 cc | 6749 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 321 HP | 455 HP |
| Engine RPM | 5000 RPM | 5350 RPM |
| Torque | 370 Nm | 720 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2270 kg | 2495 kg |
| Vehicle Length | 5790 mm | 5840 mm |
| Vehicle Width | 2000 mm | 2000 mm |
| Vehicle Height | 1850 mm | 1640 mm |
| Wheelbase Size | 3650 mm | 3580 mm |
| Fuel Consumption Overall | 13.1 L/100km | 15.9 L/100km |
| Fuel Tank Capacity | 117 L | 100 L |
