If you have a look at the original specifications of both tanks, you will see that only the width of the Tiger is bigger.
The Panther is a really big medium tank.
Length (hull) 6,32 m
Length (over all, gun forward) 8,45 m
Width 3,56 m
Heigth 3,00 m
Panther Ausf G
Length (hull) 6,87 m
Length (over all, gun forward) 8,66 m
Width (with skirts) 3,42 m
Heigth 2,99 m