1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) the dull explosive noise made by an engine 2) a small constellation in the northern hemisphere near cygnus and draco; contains the star vega 3) german industrialist who was the first in germany to use an assembly line in manufacturing automobiles (1871-1948) 4) a deep prolonged sound (as of thunder or large bells) DOWN 1) the sound of a horse's hoofs hitting on a hard surface 2) blatant or sensational promotion 3) the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics 4) an open sore on the back of a horse caused by ill-fitting or badly adjusted saddle ** Scroll down for solution. ** Are you sure you want to peek? chug lyra opel peal