[DonRotolo]

An alternative: Record a burnout sound on one of those Radio Shack 20-second solid-state record/playback thingies (under $20), use an amplifier for the speaker to make it as loud as you want (e.g., a boom box using external audio input), and use the relay (momentary closure) to trigger playback.

A very realistic sound for little $ and effort.


Plus, you can swap out sounds. Like "moo" - now that would be funny.