How to upgrade a DSLR camera using warranty?

I need to have an upgrade version of DSLR camera and I will put the rest of the money upfront is it possible (question mark)
How does the warranty for nikon works if I want to upgrade to better newer version. I bought an used DSLR camera with 3 year warranty. The camera itself is D60 and everybody now uses 3000 or 3100 DSLRs or even better D90. I love my dslr but the thing is it does not take good photos and its outdated. I need something new and fresh. I'm willing to pay extra 300 or 400 dollars for the newer version of updated DSLR! I do not know how the warranty works, but I bought my camera at local dSLr shop that still sells cameras and I need to have the upgraded version S. O.S.
Do you think the store or the manufacturer would accept for me to upgrade my camera to better version if I put in extra little money for newer better camera than Nikon D60 which works fine but does not take good photos.
The camera was bought ab

Warranties are used to pay for repairs due to manufacturer's defects. Not for trading up.

Doesn't take good photos? Come on. I'll bet that even a pro camera will give you the same results. Unless the camera is damaged, it's not the camera. The D60 is an excellent body.

Keeping up with the Joneses is a waste of money.

If you just have to have a new camera… Then take yours into the shop where you bought it from and tell them you want to use your D60 as a trade-in for whatever model you want.

On a side note… A camera "which works fine but does not take good photos" is called operator error, a camera that does not take good photos is called broken.

Warranties are for factory defects that will allow your camera to be replaced (with same model), serviced with free parts replacement under the warranty period. Replacement of the camera with another model is another promo offered by some stores but is not commonly included in regular warranties. Read your warranty card. To avail of such benefits, you will need the official sales receipt issued to you when you bought the camera. No buts.