This reminds me of the dialog between MB and McLaren when they we developing a joint super car. MB wanted more interior room because the intended customer base were a bit substantial in physical configuration. McL said no and didn 't follow MB's request. As I recall, that car also had complaints about interior space.
The Gen V interior space is not an improvement over the previous Gen IV when it comes to footwell space, it has a bit more head space, and I'm not sure about shoulder room. Overall, it is snug. I haven't been in a Gen V so I don't know about the footwell offset for the passenger or driver. Apparently, the Gen V used the same hardpoints as the Gen IV for the chassis dimensions when doing the upgrade. The Gen V is an evolution, not a clean sheet design.