VW Announces New 6.0L W-12 TSI, Bi-Turbo TDI Diesel, and 1.0L Three-Cylinder Engines. VW shows three new engines at the Vienna engine symposium. Jens Meiners Published: May 8, 2015.

One of Bison's smallest engines is its 211cc BS170F diesel engine. The four-stroke engine measures approximately 18 x 14.7 x 19.2 inches, with a net weight of only 55 pounds.