I only earn enough G's to buy a new car a few times year, so I was excited to find myself with the 800G needed to buy the Agera R.  To my surprise it came with 17 of 24 upgrades!  How is this possible?  While I usually buy the "R$-only" upgrades, that only gets you to 7.  There's no way I would have spent G$ to upgrade a car that was only lent. 

Any theories?