Per TurboTax's
forms availability schedule, the necessary form for the Alternative Motor Vehicle Credit (form 8910) won't be available through TurboTax until 2/16.
The way tax forms in software works is:
1) First the taxing authority drafts and approves the contents of the form.
2) The software vendor generates its implementation of the form and submits it to the taxing authority for approval.
3) The taxing authority approves the form and the software vendor releases it to their customers.
There can be forms released in "provisional" status, though I'm not sure how this impacts the validity of the return (that is, whether an ammended return with an approved form will need to be files subsequently).