Similar vehicles: the rows a buyer is really choosing between

Under every sheet sits a short list of similar vehicles: the same class, close in weight and close in price. It is not a list of what else a maker sells, which is the list a showroom gives you. It is the list of what you are actually deciding between.

Siblings are different again. Those are the variants of the same model, and the register keeps them apart rather than folding them together, because a longer wheelbase or a sleeper cabin is a different vehicle with a different price and a different payload.

Use similar vehicles to widen a shortlist and siblings to narrow one. Anything on either list can be put side by side in the comparison, up to four at a time, with the rows that differ marked.