I can see there's a lot of posts about with similar symptoms to this but I do think mine is related to the car getting rained on in a big way. :(
In general, the car feels like it's misfiring or starved at low revs. There is sometimes a significant lag when accelerating from low in the rev range and it's more jumpy than normal in first/second at low speed.
The car got very wet in one of the downpours recently and the problem seemed to start immediately after that.
Can anyone point me in the right direction of what parts/connections to check? I haven't had my 7 long so am still finding my way around it.