2006 Buick LaCrosse vs. 2009 Infiniti QX56
To start off, 2009 Infiniti QX56 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Buick LaCrosse. In addition, the cost of maintenance, including insurance, on 2006 Buick LaCrosse would be higher. At 5,552 cc (8 cylinders), 2009 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2009 Infiniti QX56 (320 HP @ 5200 RPM) has 80 more horse power than 2006 Buick LaCrosse. (240 HP @ 6000 RPM) In normal driving conditions, 2009 Infiniti QX56 should accelerate faster than 2006 Buick LaCrosse. With that said, vehicle weight also plays an important factor in acceleration. 2006 Buick LaCrosse weights approximately 626 kg more than 2009 Infiniti QX56.
Because 2009 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Buick LaCrosse. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Infiniti QX56 (533 Nm @ 3400 RPM) has 228 more torque (in Nm) than 2006 Buick LaCrosse. (305 Nm @ 2000 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2006 Buick LaCrosse.
Compare all specifications:
| 2006 Buick LaCrosse | 2009 Infiniti QX56 | |
| Make | Buick | Infiniti |
| Model | LaCrosse | QX56 |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3555 cc | 5552 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 240 HP | 320 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 305 Nm | 533 Nm |
| Torque RPM | 2000 RPM | 3400 RPM |
| Engine Compression Ratio | 9.4:1 | 10.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1946 kg | 1320 kg |
| Vehicle Length | 5040 mm | 5260 mm |
| Vehicle Width | 1860 mm | 2010 mm |
| Vehicle Height | 1460 mm | 2010 mm |
| Wheelbase Size | 2810 mm | 3140 mm |
| Fuel Consumption | 8.7 L/100km | 13.8 L/100km |
| Fuel Consumption City | 12.4 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 64 L | 106 L |
