1 definition by Bobo6969

An engine (2.7 liter 6cyl) in BMW cars in the 80's that was designed for getting good mileage and unfortunately making the cars not "ultimate"
Guy 1: Yo check out that Bimmer
Guy 2: Dude, it's got an eta engine and it's really slow
by Bobo6969 April 26, 2007
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