on being past due, compared to the s/x they have much more favorable payment timelines for parts for the 3. so i doubt they are running "past due". there is also cash that's cycling through as cars are sold, so it's not as if suppliers aren't getting paid for some of the earlier deliveries.
i think payables going up
is the plan.
if you assume s/x at steady state already, there's not likely much change in payables there.
on model 3, if you assume they keep 2-4 weeks of production worth of parts on hand, at the end of 2017 with all the production problems they would have needed maybe 2000 3's worth of parts. but this quarter they probably need more like 5000 3's worth of parts, assuming they're operating 2000-2500/wk. just that alone is probably a 100m increase in payables vs. last quarter not including any further delaying of payments.
this increase in payables continues as they production keeps climbing higher. next quarter imagine it would be 4000/wk production and they'd have maybe 9000-10000 3's worth of parts on hand (in payables).
for the solar roof product they are just now starting more installations, so likely there was some build there in payables with some offsetting inventory increase.
and tesla battery storage products seem to be moving faster than before too, so again inventory build with payables building.
there's also customer deposits which should be working in their favor due to all the semi orders.
taking a 100-200m payables build and 50m increase in customer deposits basically reconciles our difference of opinion.
the thing that really sinks the free cash flow is a billion dollars in capex.
yes you are correct, I meant 500k, I meant it as a sign combined with credit downgrade etc etc. I just dont see a Payables going up QoQ, I guess it's possible but I would be surprised, a net zero change is probably best case scenario for Tesla CF wise.