There's a well known racing series where nobody is allowed to spend more than $500 on their car (excluding safety equipment), and someone actually entered an Aston Martin once (sort of):
https://24hoursoflemons.com/blog/aston-martin-db7-the-half-a...
General background:
Or, you know, they find a DB7 shell in a storage facility, spend the maximum amount allowed on it while also getting a bunch of "extras" they can sell at a profit, then bolt it up to the frame of an existing racecar.
However, the stuff underneath obviously looks like it's worth way more than $500 and I'm not sure what's going on there.
Maybe it isn't what it used to be. Maybe if you don't drive aggressively, they look the other way.