Goofs

When Victor opens and then closes the door on the Olds 442, the door squeaks open, then rattles when it closes, when in earlier scenes, the doors on the 442 sound like they would sound on a completely restored car of that age. That reveals that an alternate 442 is being used for the shooting of Arturo and his car.

Gale wears gloves in the lab, which he does not remove the entire time while touching things like his headphones, his Discman, an equipment case, a drawer and such. That is not proper chem lab etiquette. The gloves might be contaminated with whatever substances they were stopping from getting on his hands. If you wear gloves in the lab, you need to avoid touching any things with the gloves that you don't want contaminated, which goes for everything you want to touch with your bare hands again later.