I ran across a new engine at Sun&Fun that I have never seen before. It is based on A VW but has a totally new case, one piece crankshaft with prop hub, totally new heads with both exhaust and intake coming out the bottom and is available in cw or ccw rotation. Show price was 12900. It is rated at 100 hp at 2900 and has a 175 ci displacement, I think that is around 2900cc. I have been fly behind VWs for a while now and if you do them right and don't ask for more than about 80hp they are great but this one looks to be truly an aircraft engine. Of course time will tell but for me I like the air cooled and direct drive, and of course the lower price. Maybe not the perfect engine for the RV12 because it is set up soley for the rotax but I think it is an engine to look into, for curiousity if nothing else.