2009 Cadillac STS vs. 2007 Peugeot 407
To start off, 2009 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Peugeot 407. In addition, the cost of maintenance, including insurance, on 2007 Peugeot 407 would be higher. At 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 94 more horse power than 2007 Peugeot 407. (208 HP @ 6000 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2007 Peugeot 407. With that said, vehicle weight also plays an important factor in acceleration. 2007 Peugeot 407 weights approximately 5 kg more than 2009 Cadillac STS.
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, 2007 Peugeot 407, 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 79 more torque (in Nm) than 2007 Peugeot 407. (290 Nm @ 3750 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Peugeot 407.
Compare all specifications:
| 2009 Cadillac STS | 2007 Peugeot 407 | |
| Make | Cadillac | Peugeot |
| Model | STS | 407 |
| Year Released | 2009 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 2945 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 208 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 369 Nm | 290 Nm |
| Torque RPM | 5200 RPM | 3750 RPM |
| Engine Compression Ratio | 11.3:1 | 10.9:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1635 kg | 1640 kg |
| Vehicle Length | 5000 mm | 4770 mm |
| Vehicle Width | 1850 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1480 mm |
| Wheelbase Size | 2960 mm | 2730 mm |
| Fuel Consumption Overall | 11.8 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 64 L | 66 L |
