Will you use solidworks design in a Car design ?

yes, I will. it is great using it to create and design parts almsot for everything 

Yes, it is possible to design almost every part of a car on Solidworks, from a single bolt to the whole chasis.

yes, from zero to fully complete

yes

.Best programs for designing car are solidworks and catia

I would use it, as long as it is possible. 

ps: i have only designed a simple car chassis. 

No I have not use of solidworks and car desiging.