2003 Chevrolet Tahoe vs. 2007 Infiniti QX56
To start off, 2007 Infiniti QX56 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Chevrolet Tahoe. In addition, the cost of maintenance, including insurance, on 2003 Chevrolet Tahoe would be higher. At 5,552 cc (8 cylinders), 2007 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2007 Infiniti QX56 (320 HP @ 4900 RPM) has 60 more horse power than 2003 Chevrolet Tahoe. (260 HP @ 5200 RPM) In normal driving conditions, 2007 Infiniti QX56 should accelerate faster than 2003 Chevrolet Tahoe.
Because 2007 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Chevrolet Tahoe. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Infiniti QX56 (533 Nm @ 3600 RPM) has 140 more torque (in Nm) than 2003 Chevrolet Tahoe. (393 Nm @ 4000 RPM). This means 2007 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2003 Chevrolet Tahoe.
Compare all specifications:
| 2003 Chevrolet Tahoe | 2007 Infiniti QX56 | |
| Make | Chevrolet | Infiniti |
| Model | Tahoe | QX56 |
| Year Released | 2003 | 2007 |
| Body Type | SUV | SUV |
| Engine Position | Front | Front |
| Engine Size | 4807 cc | 5552 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 260 HP | 320 HP |
| Engine RPM | 5200 RPM | 4900 RPM |
| Torque | 393 Nm | 533 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Number of Seats | 6 seats | 7 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 5060 mm | 5260 mm |
| Vehicle Width | 2010 mm | 2010 mm |
| Vehicle Height | 1890 mm | 1980 mm |
| Wheelbase Size | 2950 mm | 3140 mm |
