Before I bought my 212 I was actually going to get a 213 , but just happened to find an s model , 1 owner 16k miles. Sadly it wasn't an estate and the options didn't include distronic or dynamic seats which I wanted.
Apart from just 20 or 30hp, is there a factory LSD on the s. I think you could possibly save a heap of cash on the non s especially if you're not pushing the car hard all the time you may not notice any difference. You can always fit an LSD and ecu tune it.
There may be some suspension tweaks from reading up on forums at the time?
I think it is down to personal preference and the difference in £££ with what's on the market between s and non s. There's not many s models in the UK
MERCEDES AMG E63 S AUTO - How Many Left?. Last autumn loads came on sale probably because of the petrol prices hike but they've been taken off the market
When thinking about 212 vs 213 The 213 has much better tech, the 360 camera, UI etc. Literally everything tech wise in the 213 makes for a much improved experience. but if you're not into that, the 212 is very nice and analogue in comparison. The big difference is AwD vs RwD. I was happy to stick with rwd in the end. In terms of reliability the 212 has been brilliant except I think a sensor needs to be replaced which shouldn't be an issue and the
AC compressor needed replacing. The 213 with performance exhaust (pre facelift) is very loud but with the huge saving , you can get a capristo on your 212 haha. However current prices are just plain crazy on the 213s at the moment vs early 2021 when I was shopping for a car
The ride on the 212 s is very very nice too. It rides on 19s and i stuck on mps4s on the front a few days ago and it feels very plush. The pre facelift 213 is probably firm in comparison