Can your car be repoed if you're 90 days behind on car payments but are sending them 50 to 100 each month and have notified them in writing that the payments will be caught up completely in July?

Any action which is in violation of the original contract can result in reposession. If you don't pay insurance, late on payments and even if the vehicle is taken out of state or country if the contract specifically that you couldn't.

Once the lending institution can demonstrate that you have violated one or more of the terms of the original contract, the court can (and usually will) grant the motion of the lending institution and the car (or other property) becomes theirs whether you're still paying or not.

The lending institution MAY decide to work with you, but there is certainly no obligation.