Combine Car Points across all manufacturers for 30 'Level 50' cars

This suggestion was made before Update 6, which made some very welcome changes to the Car Progression system. However, I believe this system can be improved even further. One way to do that could be giving players the possibility to combine Car Points from one manufacturer, or even all manufacturers, and here’s how I see it:
– Combine Car Points from all cars of one Manufacturer after getting the 25% Price Discount
– Combine all Car Points from all owned cars after getting 30 separate cars to Level 50
These changes would make getting Level 50 on cars a lot more worthwhile, because now these cars would have a use in the form of allowing low Level cars to be freely upgraded. One benefit of this Car Progression system is not having to spend Credits on upgrades, and this change would amplify that perk.