2004 Buick Regal vs. 2006 Cadillac STS
To start off, 2006 Cadillac STS 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 4,556 cc (8 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (320 HP @ 6400 RPM) has 119 more horse power than 2004 Buick Regal. (201 HP @ 5200 RPM) In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2004 Buick Regal.
Because 2006 Cadillac STS 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 2006 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2006 Cadillac STS (428 Nm) has 123 more torque (in Nm) than 2004 Buick Regal. (305 Nm). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2004 Buick Regal.
Compare all specifications:
| 2004 Buick Regal | 2006 Cadillac STS | |
| Make | Buick | Cadillac |
| Model | Regal | STS |
| Year Released | 2004 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 4556 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 201 HP | 320 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 305 Nm | 428 Nm |
| Engine Bore Size | 97 mm | 93 mm |
| Engine Stroke Size | 86 mm | 84 mm |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4990 mm | 4990 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2780 mm | 2960 mm |
| Fuel Consumption | 7.8 L/100km | 9.1 L/100km |
| Fuel Consumption City | 11.8 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
