I would agree when it comes to economics. There are many cars out there with timing chain failures due to companies trying to save a penny on a design. Then they offer an update kit with better components down the road which costs you, the consumer, plenty of money. It would be better to have a well designed belt system that is easy to change as opposed to a chain system that requires a pretty good amount of work just to access it. Until you durability tests, you can't guarantee that chains are better. Just ask VW. They put chains on the VR6 and they make it around 120K before they start having problems (teeth wearing off gears and guide rails breaking off). My nephews Golf had the chain slip and it bent all of the valves. After a internet search, this is common. As for that engine, those have the chains on the back of the engine which usually requires a complete removal of the unit or at least the transmission. All of the update kits have better quality guide rails and gears. In the end, VW saved about 3 cents by going the cheap route. When it comes to the Engineers, they do know best but when companies are literally saving a penny on a part, it can come back to haunt them down the road. For Elio, IAV will have to be doing reliability tests on a dyno and at least simulate 200K on 20 to 30 engines before they release the final design to Elio (it usually takes manufacturers 4 to 5 engineering designs to get to the final production unit). I assume Elio is going to contract out the casting and build the engine themselves (that's pretty common in the automotive world). They just need to make sure things like the drive systems are up to par before accepting the final design.