You'll hear it. The actual RPM range of this engine is quite narrow. For all intent and purpose, it ranges from 3000 to about 4700rpm. Below 3000 rpm the engine can be lugging. Above 4700 rpm the engine gets very ragged, or rough. You don't need extra lights in this car! You are already subject to sensory overload. The mechanical vibration, the noise, the wind and the road are already enough information.
About the only thing I would lust after is a combo Oil Temp/ Pressure gauge. Working on that...
