keen radish
When we had the rarity changes some months ago there were 3 buttons with instant upgrade. 332, 323 and 233. It was very useful, especially for low RQ cars, since you have to click multiple times. I suggest we have these buttons back. It makes the car upgrades faster, which is perfect when servers lag like last week, but at the same time it makes people spend more cash, faster, easier and a bit more "recklessly".
I think that it wasn't suggested before. Sorry if it's a repost.👍 
verbal prairie
They would need to implement a new UI for you to select 15 food, but sometimes it won't be 15 food if the car is partially fused which is probably going to cause bugs with the UI. With the tokens the server calculated on its own how many to deduct and it was much simpler
keen radish
They would need to implement a new UI for you to select 15 food, but sometimes i...
they could just add it for cars that are fully fused. for example you have a car at 212 and you need just to click the upgrade button 9 times.