CarV7Test car1 = new CarV7Test(cartype, endMiles1, startMiles1, gallonsUsed1, price);
        CarV7Test car2 = new CarV7Test(cartype2, endMiles2, startMiles2, gallonsUsed2, price2);
        CarV7Test car3 = new CarV7Test(cartype3, endMiles3, startMiles3, gallonsUsed3, price3);