2006 Audi A4 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 A4. In addition, the cost of maintenance, including insurance, on 2006 Audi A4 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 102 more horse power than 2006 Audi A4. (200 HP @ 5100 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 245 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, 2006 Audi A4, 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 88 more torque (in Nm) than 2006 Audi A4. (281 Nm @ 1800 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 2009 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A4 | STS |
| Year Released | 2006 | 2009 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 3599 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 302 HP |
| Engine RPM | 5100 RPM | 6300 RPM |
| Torque | 281 Nm | 369 Nm |
| Torque RPM | 1800 RPM | 5200 RPM |
| Engine Compression Ratio | 10.5:1 | 11.3:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1635 kg |
| Vehicle Length | 4590 mm | 5000 mm |
| Vehicle Width | 1780 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2960 mm |
| Fuel Consumption | 8 L/100km | 9.1 L/100km |
| Fuel Consumption City | 10.8 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 9.6 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
