2005 Buick Regal vs. 2009 Lexus RX
To start off, 2009 Lexus RX is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Buick Regal. In addition, the cost of maintenance, including insurance, on 2005 Buick Regal would be higher. At 3,791 cc (6 cylinders), 2005 Buick Regal is equipped with a bigger engine. In terms of performance, 2009 Lexus RX (268 HP @ 5600 RPM) has 71 more horse power than 2005 Buick Regal. (197 HP @ 5200 RPM) In normal driving conditions, 2009 Lexus RX should accelerate faster than 2005 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2009 Lexus RX weights approximately 555 kg more than 2005 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Lexus RX is four wheel drive (4WD), it will have significant more traction and grip than 2005 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2009 Lexus RX 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 Lexus RX (840 Nm @ 4400 RPM) has 529 more torque (in Nm) than 2005 Buick Regal. (311 Nm @ 4000 RPM). This means 2009 Lexus RX will have an easier job in driving up hills or pulling heavy equipment than 2005 Buick Regal.
Compare all specifications:
| 2005 Buick Regal | 2009 Lexus RX | |
| Make | Buick | Lexus |
| Model | Regal | RX |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 3311 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 268 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 311 Nm | 840 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Bore Size | 97 mm | 92.1 mm |
| Engine Stroke Size | 86 mm | 83 mm |
| Engine Compression Ratio | 9.4:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1560 kg | 2115 kg |
| Vehicle Length | 4990 mm | 4770 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1440 mm | 1690 mm |
| Wheelbase Size | 2780 mm | 2730 mm |
| Fuel Tank Capacity | 64 L | 65 L |
