Looking said:
You may be serious, but the front passenger seat room is truly a joke. If they can fit someone 6'6 in the driver's seat, that person should at least be able to fit in the front passenger seat for short periods of time.
Actually, I'm impressed someone 6'6 could even fit in the driver's seat. And given your problems with the gas/brake pedal, which isn't an issue for me, I wonder if you really do fit? The Mazda5 is a small vehicle, which is one of the reasons I like it, but that smallness generally comes at a cost, and it's impressive to me that the driver can be that big. After all, what percentage of people are 6'6 anyway?
I'd expect most 6'6 people to choose other vehicles than the Mazda5, just as I wouldn't expect them to be in a Mini Cooper (they might fit just fine, but most people wouldn't expect to fit before getting in).
I do agree that it is a bit weird to have the situation where the driver's seat can accommodate people that the passenger front seat cannot. That violates some unspoken rule of symmetry I'm sure. However, I may not ever have even noticed that if it hadn't been brought up here. My front passenger seat has held my wife, several colleagues from work during lunch runs, my mother-in-law, and a few other friends, for a total of ... oh, a dozen people total, and not one of them mentioned any problem fitting in the seat. One person did notice the lack of a passenger seat armrest though.
And again, if ever I do get a passenger that has a problem with that seat, I'll just have him or her sit in one of the other seats in back. Meanwhile, the glove compartment has that great shelf where I can put things that most other vehicles don't have.
While I don't mean to dismiss your problem, I do want to note it is not something that everyone will immediately notice, and that the other seats do mitigate the issue. It is something that people should check out for themselves on the test drive. I did sit in all the seats during my testing of the vehicle before I bought it, but my main concern at the time was whether adults could fit in the third row. Now, of course, I'd recommend to anyone considering the Mazda5 to check out all the seats and make sure you're happy with them all.