Board Thread:Game Discussion/@comment-36557318-20190418115232/@comment-38174099-20190429133313

It's my first time I hear this thing about borrowing upgrades, but actually I'm not interested.

If it's not an extra-cheap one, I wait to fully upgrade a car and do so only if is the best one in WTTT (or if it's on sale - or both) using the 300  reward as a discount.

That's why, for example, I have only 46 fu cars. All those I used in WTTT are still FU and I'm happy, I need them for progression or a future WTTT.