If you participate in the weekly Summit activity of the game Crew 2, even if you are missing but one vehicle to compete in the last remaining event of that week's Summit, it is more affordable to purchase the one remaining vehicle in a bundle instead of paying the individual-vehicle price. Note that in doing so, you will be given the vehicle's default livery (paint colour), and if you want to select a different color afterwards, you will have to pay a fee to do so.