i have 2015 corolla S+,sometimes i like to drive with manual shifting ,is there a cert en speed it has to reach before it you can shift in to 7th gear usually it goes into 6th gear,but the other day i was going about 50mph and looked at instrument panel it showed 7th gear ,i wasn't aware there was 7 speed transmission,i usually drive in auto D mode,i just wanted to try the manual shifting .