If Tesla begins to lose the $7500 tax credit in 2019 and if BMW, Mercedes, Porsche, Audi, and Jaguar retain the $7500 credit Tesla will no longer have any ability to cope in the market. It will be Game Over for Tesla. GM, too, for their electric car program. Tesla obviously knows this and has pointed out the problem more than once. What I do not see is an all-out push from any quarter to amend the federal tax law to equalize the phase-out date for all manufacturers. The deadline is only four months away. Extension of the credit would defer the problem, and perhaps this is what should be done short term. But political support for tax subsidies of green programs is thin to say the least. A 50% phase-down in the first half of 2019 followed by a 25% credit in the second half of 2019 would be fair to Tesla and GM without penalizing other carmakers, whose incentives originate in foreign countries, not in the U.S. Contact your Congressional representatives! This is a very serious problem.