We maintain an open thread system in the Car Modeling section so that relevant new posts can be included in older threads. There is a HUGE amount of information already on this forum, and it's very likely that the question you may have has been answered here before. (If you post a common question in a new thread, other members will
nearly always ask you if you performed a search first.) Often the best place for new information on a topic is in a thread already existing about it- this helps keep topical information together and easier to find, and it keeps this place as a functional 'living library'.
However, if you are a brand new member (less than one week/15 posts), please DO NOT post in old threads. Check the date that the thread was started, and the date of the most recent post in the thread- if the most recent post was more than a month or so ago, then leave that thread lie. Even if you find a thread from a year or three back on your very favorite topic,
please leave it alone for now and do not post in it. Once you've been a member here for a little while (a week or two), you will quickly learn from experience what does and doesn't belong in old threads. Meanwhile feel free to introduce yourself, and take part in the current active discussions (those threads linked on the
Car Modeling front page).