This must be a really stupid question...But what's the difference between Prius IV and Four? Or are they the same ?
They only used Roman Numerals for 2010. You have a Four. 2010 was II, III, IV and V (uppercase V). 2011 on is Two, Three, Four and Five. The Prius v (wagon) is a lowercase v as to not cause confusion with the 2010 V. yeah, Toyota dropped the ball on that one lol.
wrong.. you have a Prius 4.. j/k.. IV, Four, 4 are all the same. What's worse is the Prius V being mixed up with Prius Trim 5.