I have been riding sleds for years.. Had to quit this year due to back problems.....

But there are now off the floor sleds that have 175 horse!!!! (Artic Cat)
My 2000 Yamaha ONLY had 115 and would hit 80 in next to nothing... 2 stroke..fast enough for me.
All of the new Yamahas are now 4 strokes, based on sport bike engines with 130 to 150 horse.
Power to weight ratios are ridiculous!
I miss mine already.......
Brad