WooCommerce Price Manager lets you set custom product prices for diffrent users based on how many products of that type currently is in cart. It can show live price changes on every woocommerce page including cart. It can show the original product price on products so the customer can see the difference.
About this plugin
Set custom prices based on how many products of that type are currently in the cart
Set custom price recipes for diffrent users
Change prices live for the user when adding products to cart
Works with mini-car.....