I know there are hundreds of you lurking on here

I'm not getting rid of the cossie for one so dont panic

Fed up with cheapo run arounds so looking at 3 series 330D. A few questions that could do with answers please:

1) What year did the common rail diesel engine start on the 3 series?

2) 330D M Sport - is it only cosmetic changes or is there a power increase as well?

3) Some adverts say 180bhp, some say 204bhp. Is it the M Sport that has the 204 bhp or does the normal 330d come with it as well?

4) Is the auto box good and reliable or should i look at manual ones only?

Seems to be a decent spec list for the money imo and they seem to average in the late 30 MPG

Thanks in advance if you supply some answers