The Giulia Spider's cabin is simple and elegant, but it hides a real cost: original trim is expensive to source and to re-trim, so the condition of the interior should weigh on what you pay.
The hidden cost
Mechanical parts for these Alfas are available and, while not the cheapest, are manageable. Interior trim is a different story: original parts can be expensive to find, and a full re-trim is costly. A tatty interior is not a quick or cheap fix.
What to check
Look at the seats (splits, sagging, worn piping), the door cards, the carpets — and what's under them (see the floor-rust article) — the dashboard and instruments, and any missing or damaged brightwork. Note what's original and what's been replaced with something that doesn't quite fit.
Factor it into the price
Because retrimming is expensive, the interior's condition should be reflected in what you pay. A car that's mechanically sound but needs a full interior can still be a good buy — provided the price accounts for the work, and you go in with open eyes about the cost of doing it properly.
Living with it
Many owners are happy to preserve and use a patinated original interior rather than restore it — often the more characterful, and certainly the cheaper, path. A full concours retrim is a choice, not an obligation, unless originality and top value are the goal.