2009 Acura RL vs. 2009 Cadillac STS
To start off, both 2009 Acura RL and 2009 Cadillac STS were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (321 HP @ 6400 RPM) has 20 more horse power than 2009 Acura RL. (301 HP @ 6300 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2009 Acura RL. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 245 kg more than 2009 Acura RL. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 60 more torque (in Nm) than 2009 Acura RL. (367 Nm @ 5000 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2009 Acura RL.
Compare all specifications:
| 2009 Acura RL | 2009 Cadillac STS | |
| Make | Acura | Cadillac |
| Model | RL | STS |
| Year Released | 2009 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3664 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 321 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 367 Nm | 427 Nm |
| Torque RPM | 5000 RPM | 4400 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1575 kg | 1820 kg |
| Vehicle Length | 4980 mm | 4990 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2960 mm |
| Fuel Consumption Highway | 10.7 L/100km | 9.1 L/100km |
| Fuel Consumption City | 14.7 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 13.1 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 73 L | 66 L |
