Going to the lake?

Maybe on one of these nice summers weekends you might fancy a nice trip down to a local lake or river to do a bit of boating. Normally you'd have to pay for somewhere to store your boat by the lake or hitch up your speedboat trailer to the back of your SUV. No longer, for some bright spark has solved this by creating the Humdinga, a combination Hummer and speedboat that can do 100mph out of the water and 40mph on water. Awesome, and probably really good for the environment too, because you don't have to manufacture both a boat and a car.