I drove a LS430 UL for twelve years (I bought it when it was 4 years old with 24,500 miles CPO). I loved the car, and other than the air suspension failing, it had no other issues. I converted the suspension, and it's a pity that the air suspension hadn't failed sooner.
I have been driving a Porsche Cayenne Diesel CPO for the past three years . It has been trouble free, and there are a lot fo them with high miles and no issues. That said, there is a guy that has been wanting to buy mine....he will pay me what I paid for it three years ago. There aren't many diesel Cayennes out there, and if you want the diesel, that's all you want (that was me). If I do decide to sell it to him, I was thinking about a LS500. How is the reliability? I like to keep a car until I am tired of it.
Thanks

 

I have a 2018 with AWD w/ air suspension. Bought it with 23k miles. I would suggest you search through the list of TSBs published & ensure the car exhibits non if those symptoms. Personally, utilized the tsb to fix car shaking on start and R to D transmission issues (still present). The ride is very quiet but not as soft as my previous LS 460. I would advise you get rid of the RFT at your earliest convenience. It's a new platform and new engine. Hoping to take mine @ least 200k miles unless it becomes a money pit.

 

Forgive my ignorance, but what is a TSB and a RFT? Thanks

 

(TSB) Technical service bulletin is for problems that Lexus vehicles have that are not safety related if they are safety related they become recalls. (RFT) is Run Flat Tires, which our vehicle comes with.