2009 Audi A4 vs. 2006 Cadillac STS
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (253 HP @ 6500 RPM) has 42 more horse power than 2009 Audi A4. (211 HP @ 4300 RPM) In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 852 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 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 2006 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2009 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 Audi A4 (351 Nm @ 1500 RPM) has 9 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2009 Audi A4 | 2006 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A4 | STS |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 3563 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 211 HP | 253 HP |
| Engine RPM | 4300 RPM | 6500 RPM |
| Torque | 351 Nm | 342 Nm |
| Torque RPM | 1500 RPM | 3200 RPM |
| Engine Bore Size | 82.5 mm | 94 mm |
| Engine Stroke Size | 92.8 mm | 85.6 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 930 kg | 1782 kg |
| Vehicle Length | 4710 mm | 4990 mm |
| Vehicle Width | 1840 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2820 mm | 2960 mm |
| Fuel Consumption | 7.8 L/100km | 8.7 L/100km |
| Fuel Consumption Overall | 9.4 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 70 L | 66 L |
