I don’t think this refers to the body’s actual wheelbase, but the value shown in the body set and body style choice tabs. For example:
This body set has a 2.85m wheelbase, which, when rounded to the nearest 0.1m, equates to 2.9m (0.1m above the maximum); however, the thumbnail lists a value of 2.8m, so should I trust that instead? In any case, I understand why there is a minimum wheelbase limit, but should the maximum wheelbase limit be increased? If not, I’ll be happy for the latter to remain as it is.
At any rate, in addition to reminding me of JOC6C, this QFC has elements of Road Kings, but set at the very start of the decade immediately before the one that RK took place in.