The RL was the next-generation car Acura introduced in the 2000s. It was to build on the competence of the brand and add a new modern sportiness to the car. Acura still did not offer a large V8-powered sedan like Lexus but the RL was the next best thing if you were in the market for an Acura vehicle (via Car & Driver).
The noticeable thing about the RL was its included interior technology. This car introduced a host of new technologies, including Bluetooth connectivity and heated and cooled seating. The exterior styling of the RL was largely considered bland compared to the other cars on the market.