The other day I finally managed to hit the 150db figure with the Clio. Not bad considering its not even an SPL car. The track I used was Rain by Madonna (I know I know). It has some ridiculous bass in it though.
Now its time to have a play with a test tone CD with 1Hz increments from 40-65Hz which I put together this morning. Hopefully ill be able to find the exact peak frequency that tips it over the edge to the 150 mark again. Then I can compete in a few small competitions this year with proper SPL burps.
Just thought I should post something cos im happy now.