2007 Cadillac STS vs. 2005 Cadillac CTS
To start off, 2007 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Cadillac CTS. In addition, the cost of maintenance, including insurance, on 2005 Cadillac CTS would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 141 more horse power than 2005 Cadillac CTS. (179 HP @ 6000 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2005 Cadillac CTS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac CTS weights approximately 222 kg more than 2007 Cadillac STS.
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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 195 more torque (in Nm) than 2005 Cadillac CTS. (232 Nm @ 3400 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac CTS.
Compare all specifications:
| 2007 Cadillac STS | 2005 Cadillac CTS | |
| Make | Cadillac | Cadillac |
| Model | STS | CTS |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2597 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 179 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 427 Nm | 232 Nm |
| Torque RPM | 4400 RPM | 3400 RPM |
| Engine Bore Size | 93 mm | 83.2 mm |
| Engine Stroke Size | 84 mm | 79.6 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1566 kg | 1788 kg |
| Vehicle Length | 4990 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.4 L/100km |
| Fuel Tank Capacity | 64 L | 68 L |
