Thank you for playing, and for saying straight out what didn't work! You were right about the audio: I measured a race and it was far too loud and clipping, nearly all of it a low engine drone. 0.4.2 brings it down to a normal level with nothing clipping, and SOUND EFFECTS in OPTIONS now turns the engine down too. If it still grates, which part: the music, the engine, or the crunches and dings? The maps too: there are walls right across the road now, runs of things down the middle, towers and gates that come down, and far more tracks, no two alike :0)