: Around $5,000 for basic naturally aspirated swaps.
: A used Suzuki Hayabusa engine kit can cost between £1,899 and £3,999 (~$2,300–$5,000) depending on mileage. buy hayabusa smart car
: Offers kits ranging from a basic setup for $12,699 to a comprehensive "Turnkey Motor Kit" for $22,999 . Other Components Needed : : Around $5,000 for basic naturally aspirated swaps
: A famous turbocharged build capable of reaching up to 600 hp . Building Your Own (Conversion Kits) : Around $5
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.