Subaru Europe President Hiroyuki Ikeda dropped an unexpected announcement in his Paris motor show speech when he mentioned that the company was working on a SubaruBoxer Turbo Diesel and that development is nearly complete.
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The superb rotational balance of the horizontally-opposed engine allows low vibration because the pistons counteract each other to cancel it out. Moreover, with its firmly supported crankshaft, the crankcase construction is strong enough to resist huge combustion pressure. The horizontally-opposed engine’s character is proving an excellent match for a diesel engine.