"Gladio can--" he wants to add a colorful word here but he catches a look from Gladio and shuts up. With a small smile that's too cheeky.

Noct only jokes like this- there is no chance that he would ever get Regalia crashed beyond repair. The car means a lot to him.

But he just likes to poke fun with Ignis like this.

He nods at his friends as they all pile up in the car, Noct at the wheel this time. He starts the engine and drives out of the gas station and heads toward where Wiz told them the bird might be.