The equity is the share of the car that you own. For example, if you take out a $15,000 loan to buy a $20,000 car, you have $5,000 of equity in the vehicle, or 25 per cent. (The lender has the other 75 per cent.) Equity changes over time as you pay off your loan and your car depreciates in value. For example, two years later you might now owe $10,000 on your car, which might now be worth $15,000. In that case, you would still have $5,000 of equity in the vehicle, but your share would be 33 per cent.