2006 Cadillac STS vs. 2013 Cadillac ATS
To start off, 2013 Cadillac ATS is newer by 7 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 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2013 Cadillac ATS (268 HP @ 5500 RPM) has 15 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM) In normal driving conditions, 2013 Cadillac ATS should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 252 kg more than 2013 Cadillac ATS.
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, 2013 Cadillac ATS (353 Nm @ 5500 RPM) has 11 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2013 Cadillac ATS will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 2013 Cadillac ATS | |
| Make | Cadillac | Cadillac |
| Model | STS | ATS |
| Year Released | 2006 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 2000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 253 HP | 268 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 342 Nm | 353 Nm |
| Torque RPM | 3200 RPM | 5500 RPM |
| Engine Bore Size | 94 mm | 86 mm |
| Engine Stroke Size | 85.6 mm | 86 mm |
| Engine Compression Ratio | 10.2:1 | 9.5 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 6-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1782 kg | 1530 kg |
| Vehicle Length | 4990 mm | 4643 mm |
| Vehicle Width | 1850 mm | 1806 mm |
| Vehicle Height | 1470 mm | 1417 mm |
| Wheelbase Size | 2960 mm | 2776 mm |
| Fuel Consumption Highway | 8.7 L/100km | 7.8 L/100km |
| Fuel Consumption City | 13.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 66 L | 61 L |
