2009 Cadillac STS vs. 2006 Cadillac CTS
To start off, 2009 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Cadillac CTS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac CTS would be higher. At 4,564 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (320 HP @ 6400 RPM) has 65 more horse power than 2006 Cadillac CTS. (255 HP @ 6200 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2006 Cadillac CTS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 43 kg more than 2006 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, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 84 more torque (in Nm) than 2006 Cadillac CTS. (343 Nm @ 3100 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac CTS.
Compare all specifications:
| 2009 Cadillac STS | 2006 Cadillac CTS | |
| Make | Cadillac | Cadillac |
| Model | STS | CTS |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4564 cc | 3556 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 255 HP |
| Engine RPM | 6400 RPM | 6200 RPM |
| Torque | 427 Nm | 343 Nm |
| Torque RPM | 4400 RPM | 3100 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1635 kg | 1592 kg |
| Vehicle Length | 5000 mm | 4840 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Consumption Highway | 9.8 L/100km | 9.1 L/100km |
| Fuel Consumption City | 15.7 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 13.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
