The drive key in Roblox vehicle controls is usually Y for older vehicles that use a drive tool, while newer vehicles typically use the normal movement keys once you sit in the seat. In Twisted specifically, the older vehicle- control pattern is the one most likely being referenced, so Y is the best answer.

Quick note

Some newer vehicles in Roblox no longer need a drive tool at all and instead use seat-based controls, so the exact key can vary by vehicle type.