The R231 SL was produced from 2012 to 2020.
In the US alone, around 33,000 units were sold across its entire eight-year run - sales peaked at just over 7,000 in 2013 and fell to under 1,800 by the final year. The SL500 uses the M278 4.7L twin-turbo V8, 429 HP rising to 449 HP after the 2016 update, rear-wheel drive, retractable hardtop that stows in 20 seconds at up to 50 km/h.
The R231 was built on an all-aluminium spaceframe - 110 kg lighter than the R230 it replaced - which transformed how it drove compared to every previous SL generation.
It is not the SL63.
It does not try to be.
What it is, is one of the most complete grand tourers Mercedes ever made.
Fast when you want it, calm and quiet when you don't, and rare enough that most people have no idea what they are looking at.
Now available used for a fraction of what it cost new.
The only AMG I could find was on the carpet, that is it, still a Benz with a V8.