Buffums built between 1901 and 1904 were powered by 4-cylinder engines,[2]: 1612  until the Model G Greyhound was introduced later in 1904.

The Model G Greyhound was a racing model powered by two horizontal four-cylinder engines coupled together to make a flat-eight engine.

[1] The Greyhound was the first 8-cylinder car offered for sale in the United States.

[citation needed] In 1906 another eight-cylinder powered car was offered for sale, although this time the engine was a V8.

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