=========|============|============|============|===========|================|=============
quarter | production | deliveries | Δinventory | inventory | transit | fleet
=========|============|============|============|===========|================|=============
2017/Q2 | 0 | 0 | 0 | 0 | 0 | 0
2017/Q3 | 260 | 220 | +40 | 40 | 40 | 0
2017/Q4 | 2,425 | 1,550 | +875 | 915 | 860 | 55
2017/10K | | -6 | +6 | 921 | 866 | 55
2018/Q1 | 9,766 | 8,180 | +1,586 | 2,507 | 2,040 | 467
2018/Q2 | 28,578 | 18,440 | +10,138 | 12,645 | 11,166 | 1,479
2018/Q3 | 53,239 | 55,840 | -2,601 | 10,044 | 8,048 | 1,996
2018/Q4 | 61,394 | 63,150 | -1,756 | 8,288 | 1,010 | 7,278
2018/10K | | +312 | -312 | 7,976 | 698 | 7,278
2019/Q1 | 62,950 | 50,932 | +12,018 | 19,996 | 8,350 [est.] | 11,644 [est.]
2019/Q2 | 72,531 | 77,550 | -5,019 | 14,977 | 6,400 [est.] | 8,577 [est.]