Nice idea. Maybe there could be several shops for different things so you could actually use the shops that are in the game. (Torres Tires and so on)
C'est une bonne idée, avec la possibilité de visualiser ce que l'on peux acheter. It's a good idea, with the possibility of visualizing what you can buy.
I think this is a good idea. Maybe even some car kits could be sold for different custom career mode configs for things like SBR and ETK K series