Just taken delivery of a 13 plate QQ+2 with 16k on the clock. It drives nicely and overall I've no complaints with the car, however I'm not sure whether the idle noise is normal.
At 800 revs (or thereabouts), there's a different pitch of noise, almost like a burble, and if it hadn't just had an MOT, I'd be wondering if there was a small blow in the exhaust. As soon as you change the revs, the engine sounds totally normal and as I'd expect.
I can't tell if I'm hearing engine noise at 800 revs, or if it's something resonating at that pitch. Any ideas, or things to eliminate?