the old prius's were very underpowered. yours is an improvement.
the newer ones (2017+) have the lighter weight and more efficient lithium
battery. gas mileage is up almost 20% from your prius and the
performance is better. the plug in prius prime has the added option of
an electric motor which is good for about 25 miles per charge in
addition to the regular range of about 550 miles per tank of gas.