Pretty interesting as far as cars go. I think all of the customization options are really smart, but we will see if that is enough for the average consumer. The number of relatively inexpensive options and ability to customize various details rivals some high end car configuration systems, Porsche is famous for letting you customize every detail.
The way Slate has designed their vehicles, they are making it very easy to change just about anything with the vehicle. I can see this being very popular with young people who cannot afford a lot of car, but still want a highly customized and personalized vehicle that they identify with. We will see if all of the other factors work out in Slate's favor.