For high-ticket reselling in the automotive sector, consider these niches:

1. Performance Car Parts: Target sports and exotic cars. These have a solid market and good profit margins.
2. Vintage Car Parts: Focus on rare parts for classic cars, highly valued by collectors.
3. Custom Car Audio Systems: Assemble and sell premium audio kits for car enthusiasts.
4. Luxury Car Accessories: Think custom interiors or high-end car care products.
5. Electric Vehicle Components: Capitalize on the EV trend with items like batteries and charging systems.

Each of these niches has potential for high returns. Focus on building relationships with suppliers and create a strong online presence to tap into these markets effectively.

Try to find out what already works somewhere else or even in your location, just optimize the process.

Maybe you could travel a bit and always keep an eye on businesses there and just “copy” it in your place.

If you dont believe that this works check out “Samwer Brothers” from germany. They got extremely rich just from copying Ideas.