Crazy Mountain Bike Discovery

Today I came across the most extreme mountain bike I have ever seen. A company called Christini, is now making All-wheel drive mountain bikes. http://www.christini.com/index2.php
Jeep contracted for them to produce a line of mountain bikes called the Jeep Rubicon Classic AWD Mountain Bike. I spent a little bit of time researching into it and the bike is quite a piece of work. The rear tire is driven conventionally by a chain from the pedal, but a shaft is connected to the rear hub by a gear and then that shaft runs up through the tubing of the bicycle to the handlebars where it meets another shaft that runs down to the forks of the bike. That shaft then connects to a gear on the hub of the front tire which drives it. If the rider does not always wish to be in 2-wheel drive the front tire can be disengaged by a lever on the handlebars. This is quite a bike, with a pricey sticker too, anywhere from 2-3 grand depending on where you look. I guess if you’re climbing a lot of gravel or mud it might come in handy, but at 2-3k I think I'll stick with my $700 1 – wheel drive Schwinn Moab.