2007 Audi S4 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 4,564 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 6800 RPM) has 20 more horse power than 2009 Cadillac STS. (320 HP @ 6400 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 360 kg more than 2007 Audi S4.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2007 Audi S4 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, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 17 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2007 Audi S4 | 2009 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | S4 | STS |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4564 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 320 HP |
| Engine RPM | 6800 RPM | 6400 RPM |
| Torque | 410 Nm | 427 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1635 kg |
| Vehicle Length | 4580 mm | 5000 mm |
| Vehicle Width | 1780 mm | 1850 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2960 mm |
| Fuel Consumption Highway | 10.2 L/100km | 9.8 L/100km |
| Fuel Consumption City | 15.7 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 13.1 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
