Yes. If the amount you receive on the sale is more than you paid for the car, the different is taxable gain. However, as is the usual case with a personal vehicle, where the value typically declines over time, any loss on the sale of a personal vehicle is not deductible (you cannot take a capital loss on personal use property).
A sale of property that allows for tax deferment if at least one payment is received after the end of the tax year in which the sale occurs. The installment method does not apply to year-end sales of publicly traded securities. Dealers may not use the installment method. Investors with very large installment balances could face a special tax.