a rare, purpose-built, two-door hardtop that was modified by the legendary Bill Stroppe to satisfy Nascar homologation, was just auctioned for 77k

Stroppe endowed 100 Montereys with a substantial performance upgrade, using an aluminum intake manifold, high-lift Isky cam, mechanical lifters, high-flow exhaust, cast iron manifolds, an aluminum bellhousing, heavy-duty clutch, thirty-five pound flywheel, and dual Holley four-barrel carbs.

https://fordauthority.com/2022/05/1957-mercury-monterey-m-335-crosses-auction-block-for-77k/