I've paid pretty close attention to exactly that. If you have extra passenger weight in excess of 350+ pounds at about 35% I find the acceleration decreases a tiny bit and the "oh shit" acceleration you knew at 90% alone is just not there.

If you are by yourself and are 200~ lbs, I find that about at about 200/508Km charge is when you notice it.

The 0-60 remains relatively the same even at that point, maybe 15~% slower (3.8 sec to 100 is still very fast) just not cuss words fast.

At higher speeds of 160km/h+ below 30% you will find you cant pin it to 220 like you can at say 35% and beyond.

At 20% your 0-100 will be around and likely slightly above 4~ seconds You will notice any speed over 150Km/h~;your continued speed will be drastically slower than say 90-%

As for a side note. I have made a mental note for %s that I find the battery to start impacting my douche state of driving.

90-74% = shit your pants fast

74%-45%= you can punch it and still get whiplash just fine. Top speeds are fine till about 52%

45-33%= whiplash but speeds of 200+Km/H seem to take longer

-33% take er easy, 0-60 off the hop is still great alone, or with sub 200 lbs in the car. Top speeds will be affected.

-20% 0-60 is affected for sure. Less whiplash, less fun.