This 1977 Attex 500 Superchief is an interesting example of one of several amphibious, multi-wheeled ATV’s designed and built across the US during the 60’s and 70’s, and according to the seller, it’s had one owner from new. Sale includes the trailer seen below, and the ad further claims that it runs well, with needs limited to a wax job and some new gas. Find it here on eBay in Little Hocking, Ohio for $3k OBO.

Check out the period brochure image below, which explains many of the model’s features. Other factory promotional images found here suggest that bodywork is actually foam-reinforced ABS plastic, rather than the “high density polyethylene” noted below.

Drive is by a planetary gearbox and torque converted, in turn powering all six wheels via chain drive. Controls are conventional for this type of vehicle, with two sticks operating throttle and drive direction for the corresponding side’s wheel set. Weight is given as 600 pounds, payload as 700 pounds, with a top speed on land of 40 MPH and one-tenth of that on water.

Power comes from a Chaparral-designed, Fuji-Xenoah-built 484cc two-stroke twin, which according to the seller still runs very well. Bodywork too looks to be in nice shape, though it’d be nice to have a look at the underlying frame as well.

These types of vehicles were once popular with hunters and farmers, prior to more conventional four-wheelers really coming of age in the 80’s. We think these amphibious six-wheelers are quite a bit more interesting, and this one sounds like a rare example in that it reportedly needs little more than to be used.