The near total lack of marketing by D motors is mind boggling. You think they would have a ton of YouTube video of the factory, advantages of the engine, installations, etc. as well as getting at least 50 engines flying. But they seem to want all the big money up front. It's all backwards, but then not unusual for companies to have little or no comprehension of the marketplace and what it takes to make sales. At this time, what are we to think? We don't know how good the company is, how good the engine is, and how many installations there are, etc. When people have so many unanswered questions, they don't buy.