Sorry dude the paddles i was thinking about were the normal 'monster truck' style paddles.like this-

http://www.amainhobbies.com/product_...oducts_id/3532


Those ones you gave the link for are for sand only. with those wheels you will fly across the sand...lol.
with a 4wd car/truck you will need the sand paddles on all 4 wheels.

don't know about snow though, i think the monster truck tyres would be better for that. i've only ever seen the snow twice,[X(]