I know that Amber Heard is a particularly popular choice for gender-swapped Dean, but my choice is Evangeline Lilly, not only does she have similar physical features to Jensen or Dean, the eyes, the freckles, the lips, even the form of her face (she has those very soft features) and the hair, which isn’t actually blonde, an element which is kinda overlooked, but she’s also in the same age frame, and just look:
she has the freckles and green eyes and even the full lips
The Impala, of course, has all the things other cars have… and a few things they don’t. But none of that stuff’s important. This is the stuff that’s important. The Army man that Sam crammed in the ashtray–it’s still stuck there. The Legos that Deanna shoved into the vents. to this day, heat comes on, and you can hear ‘em rattle. These are the things that make the car theirs. Really theirs. Even when Deanna rebuilt it from the ground up, she made sure all these little things stayed. 'Cause it’s the blemishes that made her beautiful.