Oh, my, there is NO comparison, the Frontier is a breeze compared to the Breverra.
NHTSA's response on CPSPList is this, btw...
"To clarify some erroneous statements which have appeared regarding child restraints produced in conjunction with Volvo:
NHTSA's FMVSS 213 standardizes the means of attachment, not fit. More specifically:
Standard 213 does standardize the means of attachment of child restraints, and in that way, prohibits vehicle-specific seats. The requirement is for child seats to be capable of attaching to the vehicle seat by a seat belt and by LATCH. The restraint can't attach only by a special mechanism that only specific vehicles have. However, if they are able to attach by a seat belt and by LATCH they can have a supplementary (vehicle-specific) attachment mechanism in addition to those universal means of attachment.
The reason for requiring a standardized means of attachment is to reduce the likelihood of misuse. We want to avoid the situation of a consumer acquiring a vehicle-specific child seat that can't attach universally and then trying to use it in the wrong vehicle. "
But what I'm not understanding then is what special attachment situation are these 'Volvo' Britaxes utilizing? They need a belt or LATCH, so.... color me confused until someone spells this out for me....