* In the episode "Testing Time for Maxi", Maxi [[spoiler:fails his tests and is not allowed to race again, leaving him in tears. Roary then asks PC Pete to let Maxi do the tests again, and he passes]].
* In the episode "Easy on the Fuel", Maxi [[spoiler:runs out of fuel and cannot race; his 3 brothers; Roary, Drifter and Tin Top offer to share their fuel with him]].
* In the episode "Drifter's Last Day", Roary worried that [[spoiler:Drifter would be taken to the scrapheap, as Drifter had a crash and he heard Big Chris talking about something going to the scrapheap, thinking he was referring to Drifter]]. But Big Chris reveals [[spoiler:he meant his karaoke machine and that he would never get rid of Drifter, as he's part of the family]].
* In the episode "Hi-Tech Overload", Drifter sings about the beauty of nature.