Fake gas engine for RC cars

Francesco writes in –

In the latest issue of the Japanese RC Magazine I discovered a custom device developed to provide to radio controlled electric cars a sound similar to the gas engines roar. The system has been created by a reader of the magazine and looks like a gas exhaust. The sound is created trough a small compressor and not by a simple chip + speaker system like seems in some RC toys…Fake gas roar: is this the future for real electric cars in 20 years?!