For the 2011 model year, Acura has freshened up its flagship RL sedan. What exactly does “freshened up” mean when it comes to the RL? It may not look like much more than a cosmetic touch-up, but there are quite a few new tricks going on under the nip-tucked skin.The 2011 Acura RL continues to utilize the 3.7-liter V6 engine with 300 horsepower that powers all four wheels courtesy of the Super