Yes I mean for PS3/XB360, but when I say "arcade-style freestyle gameplay" I mean you could do a freestyle backflip-off-300-foot-cliff thing that would be played similarly to how you would play Tony Hawk's Pro Skater or something ....
Then, for the other part of the game, you would have a "simulation" type play-scenerio where you would start out with stock sleds and do competitions, hillclimb, snowcross, or possibly rally (think poker-run boondocking type stuff) and earn money to mod them up, etc. Sorta like Grand Turismo but for sleds ...
And, you could switch it to "expert" mode and have to do real engineering-like clutch tuning so the game could also be a clutch tuning/dyno simulator you could learn how to tune clutches with hahahaha