is a bit of an apples-oranges comparison.
I ran through some of the features of the turbine earlier, but to summarize the Turbine is the 'bombproof' hot weather mesh jacket.
The Ignition Jacket is a Leather / Mesh hybrid. It is primarily a leather, with big mesh panels on the front and back for ventilation. The ignition uses the REV'IT three layer system with a leather/mesh outer layer, a wind / waterproof layer, and then a insulated thermal vest. Take all the layers out and you have a great hot weather jacket which gives you the air-flow of mesh but the protection of leather. Add the layers in and you have a solid three season jacket. The Ignition uses ProLife (CE level 2) armor.
The Ignition is a really sharp looking jacket and was one of our best sellers last season, especially in-store. There is a bit of sticker shock online (at 439) but once people try it on and feel the quality they are sold ;)
It is a tough choice, and actually one I am debating myself at the moment. Last year's hot weather riding jacket for me was the REV'IT Air, I loved it but am really interested in seeing the production Turbine first-hand, and the leather of the Ignition has always been appealing. The Air Jacket / Turbine will get you chilly fast once the temperatures drop, but I picked up a REV'IT Digital
to use as a mid-layer and it turned my Air Jacket into a solid 3-season choice, so I am sure it could do the same for the Turbine. In the end, I think you will be happy with either choice (cop-out I know)
Anyway keep the questions coming I enjoy talking about this stuff