2004 Buick Regal vs. 2006 Lexus IS
To start off, 2006 Lexus IS is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Buick Regal. In addition, the cost of maintenance, including insurance, on 2004 Buick Regal would be higher. At 3,791 cc (6 cylinders), 2004 Buick Regal is equipped with a bigger engine. In terms of performance, 2006 Lexus IS (205 HP @ 6400 RPM) has 4 more horse power than 2004 Buick Regal. (201 HP @ 5200 RPM) In normal driving conditions, 2006 Lexus IS should accelerate faster than 2004 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2004 Buick Regal weights approximately 3 kg more than 2006 Lexus IS.
Because 2006 Lexus IS is four wheel drive (4WD), it will have significant more traction and grip than 2004 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2006 Lexus IS 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, 2004 Buick Regal (305 Nm) has 54 more torque (in Nm) than 2006 Lexus IS. (251 Nm). This means 2004 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2006 Lexus IS.
Compare all specifications:
| 2004 Buick Regal | 2006 Lexus IS | |
| Make | Buick | Lexus |
| Model | Regal | IS |
| Year Released | 2004 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2491 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 201 HP | 205 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 305 Nm | 251 Nm |
| Engine Bore Size | 97 mm | 91.4 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1550 kg | 1547 kg |
| Vehicle Length | 4990 mm | 4580 mm |
| Vehicle Width | 1850 mm | 1810 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2780 mm | 2740 mm |
| Fuel Consumption | 7.8 L/100km | 8.4 L/100km |
| Fuel Consumption City | 11.8 L/100km | 10.7 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 64 L | 65 L |
