2008 Acura RL vs. 2005 Cadillac STS
To start off, 2008 Acura RL is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2005 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2005 Cadillac STS is equipped with a bigger engine. In terms of performance, 2005 Cadillac STS (321 HP @ 6400 RPM) has 31 more horse power than 2008 Acura RL. (290 HP @ 6200 RPM) In normal driving conditions, 2005 Cadillac STS should accelerate faster than 2008 Acura RL. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac STS weights approximately 543 kg more than 2008 Acura RL. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Acura RL is four wheel drive (4WD), it will have significant more traction and grip than 2005 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2008 Acura RL 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, 2005 Cadillac STS (427 Nm @ 4400 RPM) has 80 more torque (in Nm) than 2008 Acura RL. (347 Nm @ 5000 RPM). This means 2005 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2008 Acura RL.
Compare all specifications:
| 2008 Acura RL | 2005 Cadillac STS | |
| Make | Acura | Cadillac |
| Model | RL | STS |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3471 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 290 HP | 321 HP |
| Engine RPM | 6200 RPM | 6400 RPM |
| Torque | 347 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 | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1274 kg | 1817 kg |
| Vehicle Length | 4920 mm | 4990 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2960 mm |
| Fuel Consumption Highway | 9.8 L/100km | 9.1 L/100km |
| Fuel Consumption City | 14.7 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 73 L | 66 L |
