: Can range from $22,500 to over $45,000 for projects with extensive fabrication and high horsepower. Common Examples :

Buying a "Hayabusa Smart car" usually means looking for a custom-built that has undergone a motorcycle engine swap . Because these are not factory-made, you generally have two paths: buying a pre-built custom car from a private seller or purchasing a conversion kit to build one yourself. Buying a Pre-Built Hayabusa Smart Car

: Around $5,000 for basic naturally aspirated swaps.

If you already own a Smart car and want to perform the swap, several companies provide the necessary subframes and hardware.

Since these vehicles are highly specialized projects, they are typically sold through niche automotive marketplaces and auction sites. Prices vary wildly based on the build quality, whether the engine is turbocharged, and if it includes a reverse gear.

: Keep an eye on sites like eBay Motors , Bring a Trailer , or Engine Swap Depot, which frequently features unique builds. Estimated Price Range :