sorry if these questions were covered before, but i need quick answers before I make my decision on e92 vs. e93
1. is e93 hard top steal or aluminum?
2. any issues with e93 Hard top issues from leaks, wear, tear, dust going in cabin, etc?
3. can the back windows come all the way down with the hard top on/closed?
4. any issues with the e93 cabin maintaining adequate cooling or heat vs. coupe/sedan?
5. can the e93 hard top glass be tinted?
6. how does the e93 handle adults sitting in the back seat? can they sit normally or they have to duck?!