This question has probably been asked many times before, but if someone could summaries the advantages/disadvantages of each engine, that would be great. I'm looking for a 2000 (ish) Astra with auto box, and the 8v engines seems much much more common. In fact 1.6 16v engines seem pretty rare with the auto box. However is it worth tracking one down, or should i just go for an 8v engine? I appreciate that the 16v version has more bhp, but which is the stongest and most reliable engine? Is there much of a difference in performance and driveability? Any comments/advice would be much appreciated. Thanks.