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Old 12-03-2022, 08:38 AM   #14
JimRockford
 
Drives: 1SS + SS-Sedan M6 + Terrain diesel
Join Date: Mar 2019
Location: The Big Road
Posts: 62
22 1SS no NPP A10 8k miles - it makes all sorts of weird mechanical bumblebee R2D2 noises except when its parked and i expect to hear it burp/fart/tweet soon.

it would be weird if it were quieter. the non-NPP exhaust is amazingly loud on a cold start but probably due to slushbox has way less snap-crackle-pop cavitation/fuel-cutoff/decel noise than M6 015 SS Sedan.

1SS no-NPP A10 is quiet at sub-light busy-highway speeds since its turning about 1500 rpm at the posted speed limit. the V4/V8 switching back and forth makes noise as does some of the A10 gear switching so that does make for a sort of cacophony. Its worth it as the V4 mpg is outstanding! The car seems to get 30 mpg at 65 mph in that top A10 gear in V4 mode - tires pumped to 42 psi cold due to low temps and being recommended psi for certain speeds.

the owners manual says something resembling: "the car makes weird R2D2 noises from all over at random times, get used to it."
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