Here is my $.02
Do not be in a rush to purchase a vehicle. I assume you are young, inexperienced, and not well funded.
Nothing wrong with that as we were all in your shoes at one time. I still regret not listening to my dad when I purchased my first car that turned out to be a POS 58 Ford. Never bought another Ford.
Take a dad, granddad or someone older with more experience in vehicle purchases.
If you are located in central NJ I love to break the ***** of car dealers.
I would take that VIN number to the nearest Infiniti dealer and have them run the VIN number for you along with a thorough inspection and service history.
Was this vehicle purchased in the same state where you live?
Be extremely careful with washed titles as there were hundreds of thousands of vehicles caught in floods all over the United States.
Dealers usually keep the best vehicles coming off leases and send others to auction where they end up at mom and pop used car dealers most of which may not have any scruples.
Do research on that dealer.
Finally you want the sale based on a full inspection by an Infiniti dealer with any defects paid for and corrected by the seller.
If this is your first vehicle with limited funds you might be better off with a cheaper vehicle such as a Honda Civic for a few years while you save money?