I'm going to guess the others are right on the reason - the one in Fla has the bob-sled style seats so kids probably should be a bit taller -- there's nothing to help keep them in (like your arm across them). As far as being the same, I'd say NOT AT ALL! As a WDW vet (and loving it), I will say I MUCH prefer the one in California. I loved it and rode it 3 times in 3 days a couple of weeks ago. My dd (who hated the one in Fla) loved the one in California and will tell you it's now her favorite ride. But, she still won't ride in WDW. She felt safer in California. BTW, I loved the soundtrack in California, too. It's soooooo cool!