The 2016 honda CB unicorn keeps the same engine it had earlier. this engine makes 13.14bhp of power and 12.8412.84Nm of torque from its engine.this is not BS-4 engine and is only BS-3 complaint.its targeted towards tier II and tier III towns.the bike now gets a new viscous airair filter which cuts down on maintenance.it also gets a modified gear shifter. the CB unicorn was one of the early bikes to get a mono shock suspension and it continues to be a part of the bike. this 4-stroke honda engineuse technologies like multimapping CDI, tumble flow combustion chamber and roller rocker arm.this 2016 CB Unicorn returns around 55km/L in the city and around 62km/L on the highway.these are real fuel time efficiency figures based on riding in real conditions.it may vary due to different riding style .infact I am also using this bike from last 2 years. thank you