I'm beginning to find that Oh!Great's work is great in every compartment except plot - he simply fails at stringing one event to another... which explains why the Tenjou Tenge anime sucked so much in terms of plot when it spent more than five episodes explaining the past in a 26 episode series.
People actually liked that piece a crap?
But if you liked the anime you'll probably be blown away by the manga, give it a shot.
Yes I actually liked it quite a lot. It may have been bad to the mangas standards what with cutting out some things but it has actually gotten very popular over the years. You can just google Air Gear Season 2 and there are tons of forums that have topics about it with people asking when it's going to happen. It will most likely never happen tho.