i have $25000 in investments .want to buy a honda car .should i cash in my investmts or lease the car 3.9% 4yr

Leasing a car is a horrible investment. Buying a brand new car is pretty bad too. A new car loses 20% of its value the first day. If you just have to get a car, unplug your computer and go to an auction. That's where used car dealers get them. I got rid of my car and saved a pile of money. By now I'm used to riding a bicycle any time of year unless there's snow on the road. Also I lost 25 pounds.Your friends who admire your nice car won't even bother to say goodbye if you go broke.

do you pay taxes on the investments ? If your net is less than 3.9% per year, then buy it.

Neither. Save your money till you can pay cash for the Honda. But at any rate,don't lease. You would be paying for the car plus interest, and would never own it. They will just fleece you of your money, because even if you turn in the car early, you will still be held responsible for the whole contract for something you will never own.

If one has a business where the lease payments are a tax deduction - lease and keep the money in the bank.