I'm trying to find a way to describe what I hear... To compare to another vehicle, I had a 99 Firebird (V6) that had a fairly deep burble when first started or revved. The VX is not as loud or deep but still has a nice, throaty, sports car tone. The VX engine is louder than any other vehicle I've owned. I haven't often been outside VX when someone else has driven it, but I never though it sounded unusually loud.
IMHO, it should not sound this loud. It just makes me nervous. Also, it is hard because you know that chances are you're never gonna run into someone who owns a VX to compare. LOL!