I'm looking to purchase a 2016 P90D Model S, but the owner is posting that the battery on a full charge is 233 miles range. I explained this to the seller and he said that Tesla told him the original range was 250. I know a 90klw pack does about 270-80 when new. Did some 90klw packs just do 250 as owner is stating? Should I be concerned about the range on this Model S P90D?