2006 Buick Lucerne vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Buick Lucerne. In addition, the cost of maintenance, including insurance, on 2006 Buick Lucerne would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (321 HP @ 6400 RPM) has 123 more horse power than 2006 Buick Lucerne. (198 HP @ 5200 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2006 Buick Lucerne. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 270 kg more than 2006 Buick Lucerne. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2006 Buick Lucerne. In wet, icy, snow, or gravel driving conditions, 2009 Cadillac STS 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 Cadillac STS (427 Nm @ 4400 RPM) has 119 more torque (in Nm) than 2006 Buick Lucerne. (308 Nm @ 3800 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Buick Lucerne.
Compare all specifications:
| 2006 Buick Lucerne | 2009 Cadillac STS | |
| Make | Buick | Cadillac |
| Model | Lucerne | STS |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3786 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 198 HP | 321 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 308 Nm | 427 Nm |
| Torque RPM | 3800 RPM | 4400 RPM |
| Engine Bore Size | 97 mm | 93 mm |
| Engine Stroke Size | 86 mm | 84 mm |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1550 kg | 1820 kg |
| Vehicle Length | 5170 mm | 4990 mm |
| Vehicle Width | 1880 mm | 1850 mm |
| Vehicle Height | 1480 mm | 1470 mm |
| Wheelbase Size | 2940 mm | 2960 mm |
| Fuel Consumption | 8.4 L/100km | 9.1 L/100km |
| Fuel Consumption City | 12.4 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 68 L | 66 L |
