LS430 vs S430/500
The S430 and S500 were only imported as long wheel base models. There are a few short wheel base S320s in the states (they were imported one year only). The body and interior of the S430 and S500 are identical; the only difference between the two is drivetrain--you get 25 or so extra horsepower with the S500 (which cost about $600 each on a new car).
The window controls do take some getting used to because they are on the valance for the door pocket, but I don't open my windows much at all so I surely wouldn't let that be a deal breaker. The climate control is "set it and forget it" so except for leaving off money at the bank or paying tolls, I hardly think about the window controls.
The cup holder in the S430 is an interesting device that launches itself out of the console like a broken umbrella, but it has a vise-like grip device that will hold all but the most top-heavy "big gulp" cup steady through nearly all cornering maneuvers--unlike the weak-kneed holders on the LS430 that will fling a hot cup of coffee in your lap if you think about a curve in the road.
It is true lots of people are driving "entry level luxury" in the C-class, just as they are the 3-series BMW. But you don't mistake a big fat-a$$ed S-class for a poseur-mobile. I find my car (which is relatively unassuming in brilliant silver) causes traffic to part like the Red Sea when you're coming through. Parking valets fall all over themselves to get to you. I think the S stands alone in that regard.
One thing to consider depending on where you live: The S-class Mercedes really, really, really dislikes flooding or water in the interior. All the electronics are mounted under the rear seat and wired through fiber optic cable run under the carpets. You fill the floorboards with rain water and you're looking at a complete electronic rebuild to the tune of $12k or more. The recent floods in Florida and the midwest brought out some terrible tales of what happens when dirty water meets sensitive electronics. There are suprisingly few electronic controllers under the hood or in the trunk.
Good luck on your choice.
This is really a tough decision because I dont' keep cars a couple years and trade them in. I keep cars for like 7, 8 years or even more. I really get my money's worth out of a car when I purchase one. (Still on the fence)... 
JMHO
It has to be an Ultra (I guess that is what it is called), though. I want to have nav, back up camera, frig in the back, etc. Any pros or cons? Anything to look for when I do decide that it's time to purchase? Thanks, again!
there are a few to choose from... happy hunting.
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To answer OP's question, don't know pre '04, but '04 on has the rear dual vanity if you're considering a UL. The CL has it too. Also, once you go Custom or better, you get the "suede" headliners... NICE !!! It's called Altarez or something like that.
As for reliability, this is more "first year" blues, but the '04 had two recalls, one was small, the other transmission related where some flash or something would cause the transmission to not engage "P" correctly. It was only on early production '04. After that, I don't believe any recalls or issues with LS430.
REF: http://usnews.rankingsandreviews.com...8/Reliability/




