Answer
There were $11,016$ more Ford Explorers sold, than there were Jeep Grand Cherokees.
Work Step by Step
There were $81,465$ Ford Explorers sold.
There were $70,449$ Jeep Grand Cherokees sold.
$81,465-70,449=11,016$
There were $11,016$ more Ford Explorers sold, than there were Jeep Grand Cherokees.