2006 Cadillac STS vs. 2013 Kia Optima
To start off, 2013 Kia Optima 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 Kia Optima (270 HP @ 6000 RPM) has 17 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM) In normal driving conditions, 2013 Kia Optima should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 244 kg more than 2013 Kia Optima.
Because 2006 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 2006 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2013 Kia Optima, 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, 2013 Kia Optima (365 Nm @ 4500 RPM) has 23 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2013 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 2013 Kia Optima | |
| Make | Cadillac | Kia |
| Model | STS | Optima |
| 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 | 270 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 342 Nm | 365 Nm |
| Torque RPM | 3200 RPM | 4500 RPM |
| Engine Bore Size | 94 mm | 86 mm |
| Engine Stroke Size | 85.6 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | 6-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1782 kg | 1538 kg |
| Vehicle Length | 4990 mm | 4845 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1455 mm |
| Wheelbase Size | 2960 mm | 2795 mm |
| Fuel Consumption Highway | 8.7 L/100km | 5.8 L/100km |
| Fuel Consumption City | 13.1 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
