You're shopping two completely different cars under one badge. The '58-'67 classics are wide, low, chrome-heavy icons that still command respect at every stoplight, owners restore them obsessively, parts flow freely, and the enthusiast worship is real. The modern front-drive versions (2000-2020) are roomy fleet sedans with a recurring transmission weakness, rental-grade interiors, and all the charisma of a municipal parking ticket. Police departments used them for detective work but found them wanting for patrol duty. If you're hunting a classic, you're buying American automotive royalty. If you're considering a used modern one, budget for a transmission rebuild and manage your expectations accordingly.
Which C-Class you're eyeing matters more than the badge. The W204 and W205 generations built the reputation, diesels that shrug off 400,000 kilometers, interiors that age gracefully, the kind of solidity that justifies the star. Then came the 2022 W206 redesign, and Mercedes made a choice: massive touchscreens, competitive EV range, but cheaper cabin materials and climate controls buried in menus you can't safely adjust while driving. Worse, owners of 2023-2024 models report Mercedes abandoning software updates, locking them out of features the 2025s get. If you want a C-Class that feels like the Mercedes you remember, hunt down a clean W205. If screens matter more than switchgear and you can live with some cost-cutting, the W206 does luxury-adjacent competently enough, just know the trade you're making.