Manipulating car purchase prices

With the X80 Proto being a cool $2.7 mil, I wondered if there was any way to manipulate the price of cars and other items in the game.

Ages ago, you could edit tunables which controlled the shop price modifiers, but that's all been patched and now it's server authoritative (server checks to see if the price is right), so no.

You cannot, but you can purchase money for dirt cheap. There are a few people offering this service