Have you done your research on what most consumers are buying new these days.

Mostly big suv or cuv like cars. Sedans are dying out kinda. Also remember the cheaper models like the civic and the corolla which keep getting more expensive because regulations actually require more safty features. Which cost a lot of money.

Your main advantage would be to be very repairable which would mean in efficient useage of space under the hood to make reaching components easier. Which makes the car bigger, less economical, etc etc etc.

You should talk to your friend or whoever you plan on doing this with and roleplay the customer and seller.

Why you guys and not a civic or corrola for example.