Firstly
Nothing wrong with the 120 as long as you have some history with it and have it checked by a competent person. The HGF issues can be resolved easily and not that expensive. Take a look at the buyers guide, link in my signature.
Happy hunting!
180 is the one to have as the engine is superb for a V6, great soundtrack and if driven sensibly not bad on mpg. I have had mine 8 years and still love it
