Its just a deposit.
Its fully refundable for any reason.
Its holding a place in line.
It is a car I can use.
It is still based on a car that is in production so it is a known quantity.
It will use many of the existing components of the existing 500.
Modern cars are not nearly as problem prone as cars were.
Fiat is looking to leave the Fix It Again Tony, Foolish Inept Attempted Transportation etc etc, this will not be an unreliable car.
That particular factory has been producing Calibers and its various Jeep incarnations for years, this is a capable factory with a seasoned workforce with good quality control and so on. VW hasn't had much issue with their Mexican factory, the issues VW has had have come from suppliers some from Die Vaterland (Bosch-coil packs). I work with Mexican workers in our factory and I would put them up against any of our other factories for motivation and follow through.
If Ford or Toyota made even a single car I liked as much, I would be just as happy to buy it. The nearest they have is the new Fiesta which is a great car, but I don't feel any connection to it despite having owned and loved my 1978, 1979 and my 1980 Fiestas all made in Cologne Germany. Toyota hasn't made a vehicle I have ever wanted. Ever (the Mark 1 MR2 came close for its driving dynamics but god the looks...). I own a Toyota and it is a fine appliance, it is not in the least little bit desirable.
I personally need a new car in the next year or two anyway, I have had my A4 Golf for ten years and I have two soon to be driving age boys. I don't want to see it mangled and destroyed by young drivers but it is a strong safe car and would be a good starter car. The 500 looks to be fun, gets great gas mileage and should be safe for a small car. It is also the class of car I have been asking VW to make available here for a decade, which I would also have plunked my money down for in advance (Polo).
The problem with most modern cars is there isn't really much to like about them much less have any passion for. They are all good, capable means of getting from point A to point B. Aside from the Mini, MIata and a few other cars I can afford there isn't much that offers passion or causes me any pang of desire. The 500 is all of those things and more. It is a much better cohesive design than the Mini or the current Miata. Although it is certainly referential to the original 500 it isn't slavish to it and certainly diverges nicely as you get into the various Abarth variants.
I am willing to give Fiat some slack and the opportunity to wow me yet again but I can assure you: I will drive one before I buy it, I will look at it very carefully and if it doesn't measure up, I will be walking to the VW dealer to buy a new GTI.