ABC Suspension is a must have for me. I wouldn't touch a R231 without it. My 2013 SL550, purchased in September of 2014 had the three main options that are a must have for me. ABC Suspension, Magic Sky Pano Roof, and Bang & Olufsen. Sold it after 75 months of ownership with 21,000 miles on her. My tech friends at the dealership say that the R231 ABC system has been revised many times from previous year models and is the best it'll be. I'm in a new job living in a different state now, Currently in the market for a 2020 SL550. It seems like Jmatt mentioned, they seem to be rare with the ABC. I'm not pulling the trigger without having the three options. I've been going back and forth to an AMG SL63/65 car to the SL550. I like the idea of a 2020, still under factory warranty, 9-speed auto I like. AMG stayed with the 7-speed. I almost pulled the trigger the other day on a last year model, 2018 SL65, MSRP was $225k. It was at a dealer in Florida, asking $125K. It sold quickly, maybe a blessing in disguise. I have an interest in the 2020 SL550 Grand Edition. I don't see any of these editions with ABC, Magic Sky or Bang & Olufsen. A beautiful edition of an SL550, but every time I get close to purchase, I just can't pull the trigger on a car that doesn't have the options I want. I guess I'll just keep searching. It took me 4 months of constant searching to find my 2013. Good luck in your search Harapa. Don't let a sour R230 experience kill a deal for a R231. Comparison of the R231 and R230 isn't viable. They're worlds apart. You'll really enjoy the R231. We go through life once, find it, buy it, drive it, enjoy it.