First shown in 1935, the 135 was an lower, more powerful and sporting version of the Type 138 model it replaced. This model was updated in 1937, to include the 3,557cc engine in various states of tune. The the 135M or Modifie featured either one or three carburetors for 95hp or 115hp. The top model was the Modifie Speciale with 135hp.
At the center of the 135 chassis was a robust six-cylinder engine. It’s simple pushrod design ensured reliability while the modest capacity gave good fuel economy. For almost fifteen years Delahaye used this engine for their most celebrated chassis.