General listing sites like Cars.com or AutoTrader are often geared toward dealerships that may strip modifications to return cars to stock. For true builds, specialized platforms are your best bet: Bring a Trailer
The Enthusiast's Guide: Where to Buy Modified Cars Buying a modified car is a shortcut to owning a unique, high-performance machine, often at a fraction of what it would cost to build yourself. However, because these vehicles deviate from factory standards, finding a reputable source is critical to avoid inheriting someone else's "mechanical nightmare". Top Online Platforms for Modified Cars where to buy modified cars