Hi I am a newbie to the site although I have had my Fiat500C Pop for 1 year I purchased it when it was 9 months old so it is coming up to 2 years of age. Here started my problem I asked my usual mechanic to do this I have used him for years and trust him to do what is right. When he tried to change the sparks plugs one literally crumbled as it came out causing the new one to cross thread and not seat correctly so he advised me to contact local dealers as car had very low mileage and was under warranty. We arranged a transporter so as not to try and ram the spark plug down and cause further damage, needless to say spark plugs are not covered by warranty according to local dealer and we cross threaded ! Has anyone had a similar experience because I am not sure how to deal with this and it sound expensive from what I can gather? Would appreciate your feedback in not too technical terms as it takes me a while to get my head around car mechanics Thankyou.