2009 Cadillac STS vs. 2006 Chevrolet Impala
To start off, 2009 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Chevrolet Impala. In addition, the cost of maintenance, including insurance, on 2006 Chevrolet Impala would be higher. At 3,884 cc (6 cylinders), 2006 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 62 more horse power than 2006 Chevrolet Impala. (240 HP @ 6000 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2006 Chevrolet Impala.
Because 2009 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 2009 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2006 Chevrolet Impala, 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, 2009 Cadillac STS (369 Nm @ 5200 RPM) has 41 more torque (in Nm) than 2006 Chevrolet Impala. (328 Nm @ 4400 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Chevrolet Impala.
Compare all specifications:
| 2009 Cadillac STS | 2006 Chevrolet Impala | |
| Make | Cadillac | Chevrolet |
| Model | STS | Impala |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 3884 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 302 HP | 240 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 369 Nm | 328 Nm |
| Torque RPM | 5200 RPM | 4400 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5000 mm | 5100 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2960 mm | 2810 mm |
| Fuel Consumption Highway | 9.2 L/100km | 8.7 L/100km |
| Fuel Consumption City | 14 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
