[Dormamu]

I kind of hope the sounds from the driver go something like this:

(Drive Driver on) - "Engine Start!" (sound effect of light change from 'Pole Position')
Henshin!
"Drive Go!" (sounds of burning rubber)

Special attack:
(belt activation) - "Yellow Flag!"
(belt activation) - "Red Flag!"

Final attack:
(belt activation) - "Finish Line!" (sound effect of race car passing at high speed)

I would also think the alter forms would be 'Mach something' or 'Pursuit form', keeping with the theme.

And we get to also have a new debate on whether his assumed faster Speed Form is in fact quicker than Clock Up or Accel Trial.

I do think the wheels on the back of the car are for conversion to bike. I get such a GoOnger vibe from this series already. Also when was the last time a car was used instead of a bike for a Rider?