"Automobile" means a private passenger automobile of a private passenger or station wagon type that is owned or hired, and is neither used as a public or livery conveyance for passengers nor rented to others with a driver; a motor vehicle with a pickup body, a delivery sedan, a van, or a panel truck or a camper type vehicle used for recreational purposes, owned by an individual or by husband and wife who are residents of the same household, not customarily used in the occupation, profession or business of the insured other than farming or ranching. An automobile owned by a farm family copartnership or corporation, which is principally garaged on a farm or ranch and otherwise meets the definition contained in this section, shall be considered a private passenger automobile owned by two or more relatives resident in the same household; and
"Automobile insurance" means direct insurance against injury or damage, including the legal liability therefor, arising out of the ownership, operation, maintenance or use of an automobile, including, but not limited to, personal injury protection insurance, bodily injury liability insurance, property damage liability insurance, physical damage insurance and uninsured and underinsured motorist insurance.
provided however, that no installment payment shall be due if the payment date of such installment pursuant to this subsection falls on or after February 1, 1991.
In the calculation of the tax due in accordance with subsection a. of this section, a taxpayer shall be entitled to a credit in the amount of the tax paid under this subsection as a partial payment and shall be entitled to the return of any amount so paid which is in excess of the total amount payable in accordance with this section.
The amount of underpayment shall be the excess of the amount of the installment payment which would be required to be paid if the installment payment were equal to 45% of the surtax which would be shown on the return for the year if the surtax rate at the time of the payment were imposed for the entire year, or if no return was filed, 45% of the tax for that year, over the amount, if any, of the installment payment paid on or before the last date prescribed for payment.
For purposes of this subsection, the period of the underpayment shall run from the date the installment payment was required to be paid to the earlier of the date on which the surtax is due pursuant to subsection a. of this section or, with respect to any portion of the underpayment, the date on which that portion is paid.
For purposes of this subsection, a payment of any installment payment shall be considered a payment of any previous underpayment only to the extent that such payment exceeds the amount of the installment payment determined under this subsection for that installment payment.
N.J.S. § 17:33B-49