With everything out of the way, we took a really good look at the floorpan. The driver and passenger footwells looked great in our project, which was a relief. Toward the rear of the car, under the rear seating carpet, we did find some signs of rust but not enough to concern us. If you find an issue with your car here, you have a choice to make: weld in new floorpans or scrap the chassis and find a new one. Neither option is a ton of fun but there's no reason to sink time and money into a project with major rust issues.