2009 Cadillac STS vs. 2011 Audi S5
To start off, 2011 Audi S5 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2009 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2011 Audi S5 (354 HP @ 7000 RPM) has 34 more horse power than 2009 Cadillac STS. (320 HP @ 6400 RPM) In normal driving conditions, 2011 Audi S5 should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi S5 weights approximately 190 kg more than 2009 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 Audi S5 is all wheel drive (AWD), it will have significant more traction and grip than 2009 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2011 Audi S5 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, 2011 Audi S5 (440 Nm @ 3500 RPM) has 13 more torque (in Nm) than 2009 Cadillac STS. (427 Nm @ 4400 RPM). This means 2011 Audi S5 will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS. 2009 Cadillac STS has automatic transmission and 2011 Audi S5 has manual transmission. 2011 Audi S5 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:
| 2009 Cadillac STS | 2011 Audi S5 | |
| Make | Cadillac | Audi |
| Model | STS | S5 |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 4200 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 354 HP |
| Engine RPM | 6400 RPM | 7000 RPM |
| Torque | 427 Nm | 440 Nm |
| Torque RPM | 4400 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1750 kg |
| Vehicle Length | 5000 mm | 4625 mm |
| Vehicle Width | 1850 mm | 1854 mm |
| Vehicle Height | 1470 mm | 1372 mm |
| Wheelbase Size | 2960 mm | 2751 mm |
| Fuel Consumption | 9.8 L/100km | 10.7 L/100km |
| Fuel Consumption City | 15.7 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 64 L | 63 L |
