2005 Cadillac STS vs. 2009 Cadillac DTS
To start off, 2009 Cadillac DTS is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2005 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac DTS is equipped with a bigger engine. In terms of performance, 2009 Cadillac DTS (276 HP @ 6000 RPM) has 24 more horse power than 2005 Cadillac STS. (252 HP @ 6500 RPM) In normal driving conditions, 2009 Cadillac DTS should accelerate faster than 2005 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac STS weights approximately 155 kg more than 2009 Cadillac DTS.
Because 2005 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 2005 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2009 Cadillac DTS, 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, 2009 Cadillac DTS (400 Nm @ 4400 RPM) has 58 more torque (in Nm) than 2005 Cadillac STS. (342 Nm @ 3200 RPM). This means 2009 Cadillac DTS will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac STS.
Compare all specifications:
| 2005 Cadillac STS | 2009 Cadillac DTS | |
| Make | Cadillac | Cadillac |
| Model | STS | DTS |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3562 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 276 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 342 Nm | 400 Nm |
| Torque RPM | 3200 RPM | 4400 RPM |
| Engine Compression Ratio | 10.2:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1790 kg | 1635 kg |
| Vehicle Length | 4990 mm | 5280 mm |
| Vehicle Width | 1850 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2690 mm | 2940 mm |
| Fuel Consumption | 9.8 L/100km | 10.2 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 95 L | 68 L |
