1999 Buick Regal vs. 2005 Infiniti QX56
To start off, 2005 Infiniti QX56 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Buick Regal. In addition, the cost of maintenance, including insurance, on 1999 Buick Regal would be higher. At 5,555 cc (8 cylinders), 2005 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2005 Infiniti QX56 (315 HP @ 6400 RPM) has 70 more horse power than 1999 Buick Regal. (245 HP @ 5200 RPM) In normal driving conditions, 2005 Infiniti QX56 should accelerate faster than 1999 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti QX56 weights approximately 871 kg more than 1999 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Infiniti QX56 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 Infiniti QX56. However, in wet, icy, snow, or gravel driving conditions, 1999 Buick Regal, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Infiniti QX56 (529 Nm) has 149 more torque (in Nm) than 1999 Buick Regal. (380 Nm). This means 2005 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 1999 Buick Regal.
Compare all specifications:
| 1999 Buick Regal | 2005 Infiniti QX56 | |
| Make | Buick | Infiniti |
| Model | Regal | QX56 |
| Year Released | 1999 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3789 cc | 5555 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 245 HP | 315 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 380 Nm | 529 Nm |
| Engine Bore Size | 97 mm | 98 mm |
| Engine Stroke Size | 86 mm | 92 mm |
| Engine Compression Ratio | 8.5:1 | 9.8:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1560 kg | 2431 kg |
| Vehicle Length | 4990 mm | 5260 mm |
| Vehicle Width | 1850 mm | 2010 mm |
| Vehicle Height | 1440 mm | 1960 mm |
| Wheelbase Size | 2780 mm | 3140 mm |
| Fuel Tank Capacity | 64 L | 106 L |
