Upon opening the hood to get to work, Rosalind will quickly realize that, while she can probably manage to get the car up and running eventually, it won't be a quick job. The engine is in need of multiple repairs and replacement parts. All of those parts are likely available among the other vehicles lying around, but it'll take time to find and salvage them, not to mention some of the tools required are specific to auto repair and can't be found in the general store. In short, repairing the car is possible, but it'll likely take a few days, at least.

But! Rosalind will also notice that the car has a working battery, which, cool.