1991 Buick Roadmaster vs. 2006 Infiniti QX56
To start off, 2006 Infiniti QX56 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Buick Roadmaster. In addition, the cost of maintenance, including insurance, on 1991 Buick Roadmaster would be higher. At 5,731 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX56 (315 HP @ 4900 RPM) has 138 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM) In normal driving conditions, 2006 Infiniti QX56 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 520 kg more than 2006 Infiniti QX56.
Because 2006 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Buick Roadmaster. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Infiniti QX56 (529 Nm @ 3600 RPM) has 136 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2006 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
1991 Buick Roadmaster | 2006 Infiniti QX56 | |
Make | Buick | Infiniti |
Model | Roadmaster | QX56 |
Year Released | 1991 | 2006 |
Body Type | Sedan | SUV |
Engine Position | Front | Front |
Engine Size | 5731 cc | 5555 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Horse Power | 177 HP | 315 HP |
Engine RPM | 4200 RPM | 4900 RPM |
Torque | 393 Nm | 529 Nm |
Torque RPM | 2400 RPM | 3600 RPM |
Engine Compression Ratio | 8.0:1 | 9.8:1 |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | 4WD |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 7 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Weight | 1840 kg | 1320 kg |
Vehicle Length | 5280 mm | 5260 mm |
Vehicle Width | 2040 mm | 2010 mm |
Vehicle Height | 1650 mm | 1980 mm |
Wheelbase Size | 2950 mm | 3140 mm |
Fuel Tank Capacity | 75 L | 106 L |