2008 Infiniti QX56 vs. 2003 Nissan 350Z
To start off, 2008 Infiniti QX56 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Nissan 350Z. In addition, the cost of maintenance, including insurance, on 2003 Nissan 350Z would be higher. At 5,552 cc (8 cylinders), 2008 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2008 Infiniti QX56 (320 HP @ 5200 RPM) has 55 more horse power than 2003 Nissan 350Z. (265 HP @ 6000 RPM). In normal driving conditions, 2008 Infiniti QX56 should accelerate faster than 2003 Nissan 350Z. With that said, vehicle weight also plays an important factor in acceleration. 2003 Nissan 350Z weights approximately 170 kg more than 2008 Infiniti QX56.
Because 2008 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Nissan 350Z. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Infiniti QX56 (533 Nm @ 3400 RPM) has 170 more torque (in Nm) than 2003 Nissan 350Z. (363 Nm @ 4800 RPM). This means 2008 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2003 Nissan 350Z. 2008 Infiniti QX56 has automatic transmission and 2003 Nissan 350Z has manual transmission. 2003 Nissan 350Z will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Infiniti QX56 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Infiniti QX56 | 2003 Nissan 350Z | |
| Make | Infiniti | Nissan |
| Model | QX56 | 350Z |
| Year Released | 2008 | 2003 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 3490 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 265 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 533 Nm | 363 Nm |
| Torque RPM | 3400 RPM | 4800 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 7 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1490 kg |
| Vehicle Length | 5260 mm | 4310 mm |
| Vehicle Width | 2030 mm | 1820 mm |
| Vehicle Height | 2010 mm | 1330 mm |
| Wheelbase Size | 3140 mm | 2630 mm |
| Fuel Consumption Highway | 13.8 L/100km | 9.1 L/100km |
| Fuel Consumption Overall | 16.8 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 106 L | 76 L |
