Does anyone know by what measure/scale other major car manufacturers over produce vehicles in a year? I suspect Tesla has wiggle room to discount this batch of

Does anyone know by what measure/scale other major car manufacturers over produce vehicles in a year? I suspect Tesla has wiggle room to discount this batch of vehicles to get them out the door quickly, the rebate will be built into the price of the vehicles this year so i'm curious how much that will reflect in the price drop.