Straight-twelve engine

Due to the very long length of a straight-twelve engine, they are rarely used in automobiles.

Packard also experimented with an automobile powered by an inline 12 in 1929.

[citation needed] Some Russian firms built straight-12s for use in ships in the 1960s and 1970s.

MAN Diesel & Turbo 12K98ME and 12S90ME-C and the Wärtsilä-Sulzer RTA96-C are examples of contemporary marine engines in L-12-cylinder configuration.

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