There was a Japanese stream from one of the old demos that showed off some of the game. There are some pictures for some of the VS menu stuff. It's in Japanese so you won't be able to read any text from them.
Character Select

Kart Customization

Course Select

VS Rules

^ What it says:
Mario Kart 8 Options Menu Screen-
Team, Item, Class, CPU, CPU Machine, Course, and Race Count.
Kart Parts Shown:
Mario Kart 8 Karts – Standard Kart, Airship, Classical Cat, Bad Wagon, G-Force, Para-Bidybud, Pipe Frame, Princess Coach, Sneaker, Steel Diver, Superstar, Tri-Smash, Turbo One.
Mario Kart 8 Bikes – Standard Bike, Broad Bean, Burning Bowl, Jet Rider, Mach GP, Maximum, Motor Dozer, Super Comet, Yoshi Bike.
Mario Kart 8 ATVs – Standard ATV, Bean Rider, Wild Wiggler.
Mario Kart 8 Tires – Standard Tires, Normal Blue, Ring Tires, Spicy Rings, Roller, Sky Rollers, Monster, Wild Hot, Sponge, Slick, Cyber Slick, Block Tires, Cream Blocks, Metal Tires, Wood Rings, Button Tires, Cushion Tires.
Mario Kart 8 Gliders – Super Glider, Cloud Balloons, Flower Glider, Koopa Kite, MKTV Parafoil, Parachute, Para-glider, Peach Parasol, Sail Plane, Waddlewing Kite, Wario Glider.