it would probably be better to stop the wheel rather than the floor that way the floor isnt damaged, but you would be better stopping power if you touched the floor.
U can use 4 inch omnis on all 4 wheels and use sprockets to gear up to whatever ratio you would like and I would recommend using high speed internals, otherwise don’t gear up and just use turbo gearing
Make a giant engine with at least 12 motors in it with one HS output shaft. put it on the front and let that shaft run to the rear and somehow get it to a HS driveshaft to make it RWD. The drifter I made one time had the big 5" wheels because they spun the best on tile. Tilt steering is a must. A handbrake button would be a button on the controller that sets the values to - 10 ish
Why do you need a handbrake? You dont need a handbrake to start drifting not to mention vex motors don’t have enough power to break traction of normal back wheels. If you want to have a good drift I’d do normal wheels upfront with several motors powering 2 omnis in the back.