Quite right about the seats regarding belts, but if there is a simple way to avoid the needless discussion about it at the pertinent times, why not take it, unless one is of the bloody-minded arguement for the sake of it persuasion?
The 8 seats maximum is a common confusion, but it is actually incorrect. The cut off between car and minibus in terms of seats is actually 10 seats in total, which would classify it as a mini-bus, that being 9 passengers plus driver.
This has got confused amongst many insurance companies as being 9 seats in total as they often don't think passenger and driver, just occupants, so when you come to get quotes for a shuttle, some will hike it up as on
their system it is (incorrectly) a minibus, others will insure but not for business use, and others will insure it as the vehicle it is - i.e. An MPV.
What is quite funny is that TfL with their CC like the 9 seater Shuttle MPV and they can be exempt from the CC on payment of an annual £10 registration (similar to a minibus I suppose?)
I find it easier to not argue with an insurance co. if they have the wrong info as if they get that wrong, then they will get other things wrong as well in all probability, and will prefer to go with ones which have the correct info.
FYI for anyone interested, this is a photo of my own V5C showing that I have a 9 seater MPV