I tested the 4 power 4 wheelchair from BELGIUM on Cronulla beach Sydney Australia on the 29/9/2012. This chair is worth every cent! I drove for 1km along Cronulla beach without even a hint of it getting bogged even though I didn't let any air out of the tyres. As you will also see it climbs gutters no problems at all. I even had it climbing gutters a lot higher than what you can see in the video!