Daniil Kvyat
Who would've thought that Daniil Kvyat was blonde as a kid? One thing that hasn't changed though, is the Russian's large teeth, something that inspired Ricciardo to label him as "Donkey" in reference to Shrek.
The then 14-year-old was in his final year of karting in '09 before he'd go on to single-seaters in Formula BMW.
Kvyat's been in and out of F1 since then and now returns to Toro Rosso for 2019, where he made his debut in 2014.
Alexander Albon
Looking at these two images would suggest that Alexander Albon had a straightforward time riding the Red Bull conveyor belt to F1, but this is far from the case.
The 12-year-old Thai was KF3 karting, where he'd stay until the end of 2010. He was a part of the RBR Junior team until 2012, being deemed not good enough.
But he'd defy the critics to finish third in last year's F2 championship and be resigned to Red Bull for 2019, just like his teammate. It just goes to show, you should never give up, even when hurdles are placed in your way.