2006 Cadillac STS vs. 2009 Cadillac CTS
To start off, 2009 Cadillac CTS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (321 HP @ 6400 RPM) has 17 more horse power than 2009 Cadillac CTS. (304 HP @ 6400 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2009 Cadillac CTS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 28 kg more than 2009 Cadillac CTS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 (427 Nm @ 4400 RPM) has 57 more torque (in Nm) than 2009 Cadillac CTS. (370 Nm @ 5200 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac CTS.
Compare all specifications:
| 2006 Cadillac STS | 2009 Cadillac CTS | |
| Make | Cadillac | Cadillac |
| Model | STS | CTS |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3599 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 304 HP |
| Engine RPM | 6400 RPM | 6400 RPM |
| Torque | 427 Nm | 370 Nm |
| Torque RPM | 4400 RPM | 5200 RPM |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1818 kg | 1790 kg |
| Vehicle Length | 4990 mm | 4870 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1480 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Consumption | 9.1 L/100km | 9.1 L/100km |
| Fuel Consumption City | 13.8 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 14.5 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 66 L | 68 L |
