This '73 Mustang Grande spent decades parked in Pennsylvania before hitting auction, armed with a 351 Cleveland—Ford's best small-block that nobody asked for in that era. The car's story matters more than the spec sheet here, but the real question is whether it's a time capsule or a project that'll cost more than it's worth. Prices on clean first-gen Mustangs have softened since 2022; this one's condition will determine if it's a buy or a pass.