The cash deal won't save you anything. In fact, when my sister bought her Sonata last year it was cheaper to take out a loan even though she wanted to pay cash. The dealers often get rebates from the finance companies. It saved her $1k to finance it and just pay the loan off quickly.
The best way to negotiate, in my opinion, is to get price quotes from several dealers. Know ahead of time what the going price is in your area. Visit truecar.com and see what most others are paying. Know what your trade is worth before you see the dealer if you're trading.
Used car prices have collapsed recently so don't expect much for your trade. New car sales are very sluggish, but since the Niro is new, now is not the best time to buy. Test drive, let them make you an offer, then walk out the door. Prices will soften later in the year quite a bit. Let them call you up with a better offer. Let them keep calling till the offer is right. Time and the weak auto market are on your side.
Last edited by Jay; 04-15-2017 at 11:57 AM.