imo the ride on the D8 is better then the ride on the Mseries but the motor in the cat is more reliable then the polaris but once the poo is set up right it will run amazing all day long
selling my 08 summit x for 5500$!!! 4000+ on chassis but has 1000 km on short block, team secondary, hrp head, slp y pipe and can, slp powder pro skis, wicked sled 163 track, just needs drop brackets as the xps are known for having weak drop bracket that get stress cracks