Lease contract means the total legal obligation that results from the lease agreement as affected by this article and any other applicable rules of law. Unless the context clearly indicates otherwise, the term includes a sublease contract.
Installment sale contract or "contract" means an agreement for the retail sale of a motor vehicle, or that has a similar purpose or effect, under which part or all of the price is payable in 2 or more scheduled payments subsequent to the making of the agreement or under which the obligor undertakes to make 2 or more scheduled payments or deposits that can be used to pay part or all of the purchase price, whether or not the seller has retained a security interest in the motor vehicle or has taken collateral security for the buyer's obligation, and any extension, deferment, renewal, or other revision of that agreement. The terms include a loan, mortgage, conditional sale contract, purchase-money chattel mortgage, hire-purchase agreement, or