I will be VERY closely following this thread, while enduring the wrath of my g/f in the process. She has already clearly stated that I shouldn't even be THINKING of anything like this, since the car is supposed to be a reliable daily driver for me (I have other project cars that run at times when they want to). But watching someone go through this process from begining to end will be invaluable for the day when I finally will be able to do this to my own car.
To the people that are trying to grasp the difference in price between a turbo and this kit (or why anyone would even WANT to go this fast in a car this small), it is really the mindset of the person. Not everyone that went and bought a Smart had the same things in mind. Some wanted a small, econimcal car that still had plenty of 'big-car engineering', some wanted something unique and different, while others wanted a very light, but well built chassis as a jumping-off point to OTHER projects. Someone doing a swap like this where the eventual costs (at least on the initial R&D and build) exceed the original price of the car isn't trying to get gas mileage that is double that of most SUV's. They have something totally different in mind. And since it is their money, let them roll with it and don't belittle them.....until they start whining about how much stuff costs. THEN we can rag on them to no end.
Me? I can't wait until more is known about this swap and the prices for it are much lower (diff, engine, rear subframe, etc). I really like the size and the weight of the Smart, as well as the casual driving personality of it currently. But I really like the idea of being able to have ANOTHER 6k rpm on tap if I really feel like beating the car and tires up.
