gear stick feedback when driving

sorry for yet another question..Im considering rejecting the car at this rate

my 08 nissan note, and thanks to everyone that has replied to my
questions so far....I bought the car on the 6-9-11 and have only full use of
it for three days..just had the c02 sensor done, handbrake adjusted, new
brake pads by the garage I bought it from, now when I axcelerate from 1st
or second, I get a sort of metallic "doink"sound. not very loud.
and the engine amber light has come on aswell, not sure if it is related to
each other or the fact that they only changed one of the c02 censors and
not both, which I have been tolled is normally done by my next door who
works for vauxhall.

but this question is.....when driving along in 4/5th if my hand is resting on
the gear stick, I can fell feedback like a little kick or judder now and again,
not when changing gear, does anyone else get this ?

I sold my freelander sport to buy this becuase of the running costs
and there was nothing wrong with it