Sorry, typo. Folding traction mats, something like these.

Maxsa 20025 Compact Folding Traction Mat for All Weather Vehicle Extraction (Set of 2), Red https://smile.amazon.com/dp/B000H0PANU/ref=cm_sw_r_apan_i_FECJ4KS6TTF9B1YSGD4K

There is no product that I'm aware of that is a traction aid made to be used before you get stuck, like snow chains but for sand. My other vehicle is a nissan frontier with oversized tires and everything I would recommend you do, you can't do like air down. Your best bet is to stick to the firm sand and do not stop. You stop, you sink. The m3 is very heavy and has small tires so ground pressure is very high.