Classic car owners face increasing restrictions in emission-controlled zones but don't want to abandon beloved vehicles. Plug-and-play conversion kits could preserve the exterior while modernizing drivetrains.
Design model-specific kits with battery packs, motors, and controllers that maintain original aesthetics. Include DIY installation guides.
Sell complete kits direct to consumers or partner with restoration shops.
MVP could be a single popular model kit with local installation service.
Risk: High upfront R&D costs and regulatory compliance hurdles.