We have a 2 inch hitch that fits your 2024 Buick Envista with the Curt # C75VV which is generally the more popular hitch size but we do not have a 1-1/4 inch option. For larger vehicles typically the smaller hitch size does not get made since it is much lighter duty. We do have an adapter to convert this hitch size down to a 1-1/4 with the part # HT02. view full answer...