I been looking for base model to replace my daughters X3 lease. I came across all these basically RX350 Base premium models with these upgraded wheels which are dark as well.
Her thing is she wanted F sport like mine because, of basically the appearance of base model, but his one looked good with dark 21inch wheels and part of under $600 month lease program.

Never seen this wheel option before, and I don't think it even on Lexus website and this from factory.

 

Those wheels are on the Lexus web site when you build an RX Premium.

 

I was just looking where you select the type of RX, and then shows you available wheels. That is cool there finally listening to customers as base RXs or any Lexus base model always had horrible wheel choices. Here you can get a nice wheel and not have to get upgraded trim level.
Strange the dealer inventory here I been checking no longer have any high end models, and forget Fsport 350, it seems they brought in all these base models for this promotion.

 

They look a little easier to clean than the other 21 inch wheels. Look more like black than dark grey to me. I’m not a black wheel fan.

 

The 21" wheels on the PremiumPlus are a breeze to clean - especially on a hybrid with little to no brake dust.

 

If you think so. Waaay to many little nooks and crannies to get into to clean. No chance at cleaning the barrel of the wheel when they're on the car either.