2009 Audi A4 vs. 2008 Cadillac STS
To start off, 2009 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2008 Cadillac STS would be higher. At 4,376 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (469 HP @ 6400 RPM) has 311 more horse power than 2009 Audi A4. (158 HP @ 4500 RPM) In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 630 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 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A4. In wet, icy, snow, or gravel driving conditions, 2008 Cadillac STS 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, 2008 Cadillac STS (595 Nm @ 3900 RPM) has 345 more torque (in Nm) than 2009 Audi A4. (250 Nm @ 1500 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2008 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A4 | STS |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1798 cc | 4376 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 469 HP |
| Engine RPM | 4500 RPM | 6400 RPM |
| Torque | 250 Nm | 595 Nm |
| Torque RPM | 1500 RPM | 3900 RPM |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 930 kg | 1560 kg |
| Vehicle Length | 4710 mm | 5030 mm |
| Vehicle Width | 2010 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1480 mm |
| Wheelbase Size | 2810 mm | 2960 mm |
| Fuel Consumption Overall | 7.4 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 65 L | 64 L |
