1st. I did experience buying a 2008 model in feb 2009, then when I went to renew istimara in 2011, they just renewed it without going for technical inspection. But in 2012, I was required to go for an inspection. To make it easy, go to the traffic dept counter at city center at basement parking to inquire on more details.

2nd. If you were to register early before the expiration date, they will register it on the day itself, and not the logical way which should be the day after your expiration date, even if it's a few days earlier.

Hope this helps.