The toy car of jess is new
But -- what is your question?
"toy car of jess" <~~that's a very cumbersome way to express possession in English.
It's smoother to say, "Jess's toy car is new."
http://www.chompchomp.com/terms/apostrophe.htm
It's smoother to say, "Jess's toy car is new."
http://www.chompchomp.com/terms/apostrophe.htm