Supplied with a pair of bench seats to carry four passengers, it was powered by an engine set beneath the car's body, a two-cylinder, horizontally opposed, air cooled design that produced 18-20 horsepower. It had two forward gears and one reverse gear with a chain-drive system to the large "high-wheel", wagon-style, rubber-shod wheels at the back.^[2] Its high wheels and wide stance gave it the stability and ground clearance to cope with poor roads. Accessories such as a canvas top were optional.^[1]

Buyers found it tough and reliable. The many widespread International Harvester dealers made service easy to find.^[1]

The Buggy was considered a car, so in 1912, when IHC decided to market just trucks, it was dropped.^[1]

Late in 1908, a variant was announced with a single bench seat mounted on a well-sided tray in place of the Buggy's automobile-styled body. A second bench seat could be mounted on the Wagon's tray, still leaving a very short tray available behind it. IHC's first true truck, it was tagged their Model A from 1908 to 1911. A wide-track version was tagged Model B. Auto Wagon sales in 1909 led the emerging light-truck market.^[1]

In fact, the Wagon had the same chassis and the Wagon seat and tray combination could be put straight onto a Buggy chassis.^[1]

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  Auto Wagon
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  Auto Wagon with tray one bench seat and hood
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  A 1912 Auto Wagon two bench seats and tray
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  Auto Wagon two bench seats and short tray
•  
  Auto Wagon with three bench seats

1907 to 1911 Model AA (air-cooled)

1907 to 1911 Model AW (water-cooled)

1912 to 1917 Model MA (air-cooled) load 800 lbs

or Model MW (water-cooled)

or Model MAX (air-cooled and wide-track)^[1]

The range of bodies available included pickup, delivery, stake-type, panel delivery, and bus. Some became fire trucks.

Pneumatic tires became an option.

1915 to 1917 Model M ½-ton load 1000 lbs

1915 to 1917 Model E ¾-ton load 1500 lbs^[1]

•  
  1912 Auto Wagon cranking
•  
  Chain drive
•  
  1914 MW

Announced in 1915, full production of the Auto Wagon replacement began in 1917. Quite different in appearance, it had a sloping "coffin-nose", and more importantly, it was a water-cooled four-cylinder without chain drive, and it had low wheels and either solid or pneumatic tires.^{[citation needed]}

• High wheeler