water inside my car

Need to determine what fluid is on your floor. Coolant tastes sweet, but only taste a little of it, because it is toxic. If it is only water, then it could be that your A/C drain hole is plugged up which is then allowing the water from the evaporator to drip on your carpet.

the only thing that could leak inside the car would be the heater core

there is a drain tube for condensation off the A/C. This tube has come loose and is now dripping inside the car