A naturally aspirated light weight 500hp engine? I think you’re looking at about a 4.5L minimum engine to get that output, which will not be light. I think the

A naturally aspirated light weight 500hp engine? I think you’re looking at about a 4.5L minimum engine to get that output, which will not be light. I think the closest to what you’re looking for might be the lotus emira, but that will have a supercharger. https://www.caranddriver.com/lotus/Mira https://www.caranddriver.com/lotus/Mira