That's me you're talking about...
Why not "the big load is in that car"?
Because there’s no definite article that applies to ualach in that sentence.
Got it. Thanks.
Why not "that car has a big load"?
sa charr sin - "in that car"
tá ... ag an gcarr sin - "that car has ..."
weight not accepted?why
Theoretically, if there were a single barbell in the car, you could say "there's a big weight in that car", but that is not how Tá ualach mór sa charr sin would usually be understood.