The more I play Motordome, the more I enjoy it. Depending on the skill level you choose, the upper ramp saucer shot can be 1, 2 or 3 million points. But lighting Million is more challenging in harder modes, with target randomizing and the outholes remaining open for fast drains. As far as the audio goes, you can keep it low if it really bothers you. The music is a little 8 note tune that repeats itself and key changes as you light Million, when you reach Million the music picks up the tempo (which I personally like). The sound effects are fun with tire peel outs, bike explosions, and fireworks if you hit the Million shot. Not everybody can own a MM or others, so why not enjoy something a little different. Only 2k were made and probably even less are operational today. I think it is a great example of a pinball that is score focused rather than rule focused but you do have to follow a couple rules to light that Million shot and increase your score. Enjoy it, and don't be bummed.
You can check out more details I left under the game ratings.