I remember test driving an Aston a few years ago and it was so loud and harsh-shifting, with fake throttle blipping on the downshifts that I was embarrassed to be in it. A few stabs at the screen got me to a non-hooligan mode and it behaved itself like an English gentleman should.
When I bought my Corvette, it literally exploded into life. I asked about that and they said No, there's no quiet startup. Our garage is sideways on the lot and the kid's bedroom next door was about 50 feet straight behind the exhaust pipes. I could see their curtains pulled back every time I went out in the early morning... great for the kids but their mom wasn't that impressed.
Now if I could have kept Kim's red Porsche parked sideways behind the Vette, that would have dispersed the sound, but I didn't think of that ploy at the time.
Cheers,
Mike