2007 Cadillac STS vs. 2012 Kia Optima
To start off, 2012 Kia Optima is newer by 5 year(s). Which means there will be less support and parts availability for 2007 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2007 Cadillac STS would be higher. At 3,556 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2012 Kia Optima (274 HP @ 6000 RPM) has 20 more horse power than 2007 Cadillac STS. (254 HP @ 6500 RPM) In normal driving conditions, 2012 Kia Optima should accelerate faster than 2007 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 247 kg more than 2012 Kia Optima.
Because 2007 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2012 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2007 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, 2012 Kia Optima (364 Nm @ 1750 RPM) has 22 more torque (in Nm) than 2007 Cadillac STS. (342 Nm @ 3200 RPM). This means 2012 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2007 Cadillac STS.
Compare all specifications:
| 2007 Cadillac STS | 2012 Kia Optima | |
| Make | Cadillac | Kia |
| Model | STS | Optima |
| Year Released | 2007 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 2000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 274 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 342 Nm | 364 Nm |
| Torque RPM | 3200 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1782 kg | 1535 kg |
| Vehicle Length | 4990 mm | 4844 mm |
| Vehicle Width | 1850 mm | 1831 mm |
| Vehicle Height | 1470 mm | 1455 mm |
| Wheelbase Size | 2960 mm | 2797 mm |
| Fuel Consumption City | 13.1 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
