Final answer:
Engine technologies such as computer controls, variable valve timing, multi-valve engines, turbo charging, and gasoline direct injection can help reduce engine noise in the NV200 engine.
Step-by-step explanation:
Engine technologies such as computer controls, variable valve timing, multi-valve engines, turbo charging, and gasoline direct injection can help reduce engine noise in the NV200 engine. Computer controls can optimize the engine performance, while variable valve timing and multi-valve engines can improve efficiency and reduce vibrations. Turbo charging and gasoline direct injection can provide more power and smoother operation.