Bardlebee
Member
In my experience changes like this apply to the next tax year. So if in September, 2013 they eliminate the credit the earliest it could take effect is the 2014 tax year (Jan 1, 2014).
Though I am sure its not the cause, I like that Tesla shows the full amount of the vehicle when your in the design studio. It makes them seem at least truthful, though I pity those who don't read the fine print sometimes.