Final answer:
The NPV for the car rental expansion is -$82,286, indicating that Elite should not purchase the automobiles.
Step-by-step explanation:
To calculate the NPV, we need to calculate the incremental cash flows for each year, discount them back to present value using the cost of capital, and subtract the initial investment.
In this case, the incremental cash flows for each year are $21,000. We need to calculate the present value of these cash flows for two years, which is $38,844. We subtract the initial investment of $900,000 and get a net present value of -$82,286.
Since the NPV is negative, the company should not purchase the automobiles. The negative NPV indicates that the project will not generate enough cash flows to recover the initial investment and provide a return greater than the cost of capital.