Tippy? No.....it's got a nice low center of gravity, so even though it's 50" wide, it doesn't feel tippy....

NO, the wheels will not pull off the ground when you hit the throttle, at least not in the dirt.

I am not sure what the top speed is governed by - there wasn't a long enough straight area to top ours at in....

I can only assume the fuel injection is mapable, but that's not something they covered in our intro......

Water fording limit? The air intake is located behind and between the seats - I think your lap would be underwater before you would suck water........

They say it's supposed to be released around April.....

Not sure about Posi or diff lock - I know you can put it in AWD or in two wheel drive...........I'm sure when some specs are made available, it will be easy to find.

The speedo goes up to 70, if that helps at all.......perhaps that's it's potential once some mods are made.....