Exempted from the gross receipts tax are the receipts from selling vehicles on which a tax is imposed by the Motor Vehicle Excise Tax Act [N.M. Stat. Ann. Chapter 7, Article 14], vehicles subject to registration under Section 66-3-16 N.M. Stat. Ann. and vehicles exempt from the motor vehicle excise tax pursuant to Subsection F of Section 7-14-6 N.M. Stat. Ann..