Random question... are all W222 S63's long wheelbase compared to a regular S Class? I own a 2019 S63 and just based on the rear seat configuration and recline I'm guessing it's a long wheelbase but not sure... can't find anything definitive online either. Thx

I believe all the US S63’s are long.

The 222 S63 was available in short wheelbase, prefacelift form(13-17) although I've only seen it in 63/14. It wasn't in America and I'm quite sure its RWD only. Your car is long wheelbase, but if you wanted to check I believe a Mercedes VIN decoder will help you.

I believe ALL S63 and S65 models (worldwide, not just US) are LWB (W221).