Why is my car leaks oil and coolant?

I own a 2002 Ford Windstar. White thin smoke comes out of the engine, it leaks a lot of oil when I drive it. The let's out a sweet odor while I drive it which is unusual. Someone started my engine and said the what pump leaks and noticed the car needs water. They say it's leaking coolant from under the car but to me it looks like oil. Can you tell me what is wrong with my car and how much it will cost to repair it.

Added (1). They said the water pump leaks coolant. The inside of my car smells sweet when I drive.

It's NOT unusual, burning coolant smells sweet. That's not good. But I'm glad you noticed and noted it, you know that's not how it should smell. Have your Cooling System Pressure Tested. Intake or Head Gaskets are the likely cause. You need to take better care of your car, seriously.

The head gasket is likely blown. See a mechanic and get the head gasket tested.

White smoke and a sweet smell is an antifreeze leak. If the water pump is leaking don't drive it. A bad water pump seal can empty the cooling system with in a half mile and over heat the motor enough to ruin the head gaskets. That's a good $1500 job on your motor. Don't put water in the cooling system. It has to be a 50/50 mix of antifreeze and water or the inside of the motor will rust up and plug the heater core and radiator.

Those are signs that the cylinder head gasket has failed. On a Windstar, that costs between $800 and $1200 to get fixed.

Open up that gift and look at the teeth. It has some cavities.