In my town there is a kid that drives a Trekker. He just got it. It is the only one I have seen in person and I haven't seen many on the net either. It is beat up but not rusted which is rare in Minnesota.(The unrusted part)

America's first fourwheel drive was built in Mankato, MN by Ernest Rosenburger in 1908 who founded Four-Traction Auto Co. on Hickory Street. The company though successful closed in 1913.