Thanks @farooqkhan80 wrt the rpm ranges. Was thinkong maybe something wrong with my gear ratios... Guess prosmatic must be having a 6th fwd gear too for cruising...
W.r.t the android pannel, i got it for 18,000 about 3-4 months back from lahore (principally for google maps - as being new in punjab didnt know roads/ directions here well).
As the pannel i got changed one of the vents and was a clip to clip fitting. it looks really nice (almost OEM fitting) and i recommend it fully.
Pro tip - While in market however if u r getting this - see how much RAM it has. As there r 2-3 types of pannels all look exactly the same but have difference in performance (lag time in app launch) due more/ less RAM.
Also DO NOT use it for watching videos as it will distract you big time...