Let's see... No one is going to be required to scrap anything. The financial incentives, if any, are likely to be minimal. And the only vehicles that are going to be scrapped are the ones with no collector value and little likelihood of sharing parts with collector cars. This isn't going to have much impact on collector cars at all.
The fact is, there is
already a provision of the current tax code that currently encourages cars to be scrapped. It has had the effect, not of eliminating the collector cars, but rather, of eliminating the car that someone of limited means can buy for say $250. I'm referring to charitable donations. Let's say you have a 1983 Honda Accord sedan, and it has 200,000 miles on it, and maybe it needs some significant repairs, say $1,000 worth. You could sell it to a junkyard and maybe get $50-100 for it. Even if you did the repairs, it wouldn't be worth all that much more than you just paid for the repairs, so you're spending $1,000 to get a car that's worth $1-2K. But the big money is in donating the car. There are lots of organizations such as our local
Lung Association that accept cars as donations and offer a big tax deduction. Even though that Accord you're donating might need some repairs, if you donate it to charity, you can deduct the market value of the car. Look it up in
NADA and you'll find that at high retail, it's worth $1,875. So if you donate it, you don't have to pay for the repair
plus you get a tax deduction of $1,875 which can be worth $525 to $731 to you as a reduction in your taxes. Which is a far better deal than repairing it or junking it.
My mechanic told me that this current provision of our tax laws has had a huge effect of keeping those inexpensive cars from being resold.