2006 Audi S4 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Audi S4. In addition, the cost of maintenance, including insurance, on 2006 Audi S4 would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 20 more horse power than 2009 Cadillac STS. (320 HP @ 6400 RPM). In normal driving conditions, 2006 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 30 kg more than 2006 Audi S4.
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 Audi S4, 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 (427 Nm @ 4400 RPM) has 17 more torque (in Nm) than 2006 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 2006 Audi S4. 2009 Cadillac STS has automatic transmission and 2006 Audi S4 has manual transmission. 2006 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi S4 | 2009 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | S4 | STS |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4565 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 | 7000 RPM | 6400 RPM |
| Torque | 410 Nm | 427 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1560 kg |
| Vehicle Length | 4590 mm | 5000 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2960 mm |
| Fuel Consumption Highway | 11.2 L/100km | 9.8 L/100km |
| Fuel Consumption City | 15.7 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
