2009 Cadillac CTS vs. 2008 Cadillac STS
To start off, 2009 Cadillac CTS is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2008 Cadillac STS would be higher. At 5,664 cc (8 cylinders), 2009 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2009 Cadillac CTS (395 HP @ 6000 RPM) has 93 more horse power than 2008 Cadillac STS. (302 HP @ 6300 RPM). In normal driving conditions, 2009 Cadillac CTS should accelerate faster than 2008 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac CTS weights approximately 185 kg more than 2008 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2009 Cadillac CTS. In wet, icy, snow, or gravel driving conditions, 2008 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 CTS (536 Nm @ 4800 RPM) has 167 more torque (in Nm) than 2008 Cadillac STS. (369 Nm @ 5200 RPM). This means 2009 Cadillac CTS will have an easier job in driving up hills or pulling heavy equipment than 2008 Cadillac STS.
Compare all specifications:
| 2009 Cadillac CTS | 2008 Cadillac STS | |
| Make | Cadillac | Cadillac |
| Model | CTS | STS |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5664 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 395 HP | 302 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 536 Nm | 369 Nm |
| Torque RPM | 4800 RPM | 5200 RPM |
| Engine Compression Ratio | 10.0:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1745 kg | 1560 kg |
| Vehicle Length | 4870 mm | 5000 mm |
| Vehicle Width | 1800 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2960 mm |
| Fuel Consumption Overall | 14 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 68 L | 64 L |
