(The proceeding is just my opinion and not an attack on any individual. Don't get all butt-hurt about it, just listen to another perspective and consider it.)
It's not that you can't do it...you just shouldn't do it.
RLs are elegant, upper-class cars. They shouldn't have things like giant wheels, drop springs, or anything else a punk, ricer or pimp would have on their cars. Let the understated elegance of the RL speak for you, not some "blingy" junk. One may think that stuff makes the car "stand out" or be "unique", and it does, but not in a way you might desire. Rather, it's in a way that will make others look at your car and just shake their heads in disgust, wondering, "Why would someone ruin a beautiful car like that?" Also, big wheels aren't unique anymore. They're played-out, formulaic junk that is not only ugly, but adversely affects the performance of the car.
Spend your money on keeping your RL clean and operating at top levels, not some unecessary junk like big wheels.
(The preceding was just my opinion and not an attack on any individual. Don't get all butt-hurt about it, just listen to another perspective and consider it.)
It's your ride, so do your thing. But don't think everyone's going to love it.