We I have always been into winter sports so this would be cool. Can run on the same lua as GoatRacer, only you use sledges, skiis, snowboards, binbags, iceskates etc.
The maps would be downhill with some ramps here and there and also hazards like empty, big ass pools or electric fences or busy roads.
Abilities:
Would be something like bunny hops, different, more advanced steering, stunts (e.g. superman, grabs for snowboard, pirrouettes for ice skates and skiis and 'The whore' (you lay on your back and spread your legs out.)).
Advantages + Disadvantages.
Maybe a balance system: Really easy for bin bag racers but hard for ice skaters yet iceskaters can get more speed.
Aerodinamicity and friction: Binbag has most friction and maybe more a.d. then sledges/ yet sledges have less friction and overall are better.
Steering: Pretty obvious, bin-bag can just slightly and gradually turn while skiiers can slalom.
Upgrades:
Pretty obvious again.
Bin-bag: Friction upgrades would be something like 'ironing' the binbag. Engine upgrades, none you rely on gravity. Boosts: Maybe gloves with better grip so you can push yourself along.
Sledge: Friction upgrade would be sharper blades. Engine upgrade more mass, therefore more gravitational pull. Boosts: I know it's silly, but you could stand up on the sleigh and do a fire fart.
Skiis: Friction upgrade would be less air friction, with every upgrade you are in a more aerodynamic position. Engine upgrades, those sticks (dunno what they are called) that you put into the ground and push yourself with them (start off with tree branch then bamboo stick then normal ones) boost would once again be firefarts...
Snowboard: Friction upgrade same as skiis. Engine upgrade none. Boost (because snowboards are cool and mostly used by teens and shit) you would have coke+mentos rockets (reusable every round or maybe on power-ups) first one is a small one on back in middle, second one is two small ones on back, either side, 3rd is large bottle on back middle and you get the idea.
Iceskates: Friction upgrade, sharper blades plus same as skiis and snowboard. Engine upgrade/ boost upgrade is stronger legs to push with. First one is normal legs, middle would be something like horse legs and best would be cybernetic legs...
Phew, that was a long one! What do you think?!