You could have looked before posting instead of relying on your recollection of the facts?
If your 60L petrol tank reduced in capacity to 57L after 100,000km and was down to 54L after 320,000km would that be a big deal?
"The data clearly shows that for the first 50,000 miles (100,000 km), most Tesla battery packs will lose about 5% of their capacity, but after the 50,000-mile mark, the capacity levels off and it looks like it could be difficult to make a pack degrade by another 5%.
The trend line actually suggests that the average battery pack could go another 150,000 miles (200,000 miles total) before coming close to 90% capacity."
