I think Gary is right on the mark with his comments.

I would say that I think there is far greater diversity to software than automobiles.

Recently automobile design really seems to be going down one route.

I have been struggling to find a car van. Vauxhall (GM) used to make something called an astra van which was perfect an estate car but with paneling on the back. They stopped production and no other manufacturers do anything similar. I am left with mini vans or proper industrial vans but nothing in between.

The mini vans are pretty small and the bigger vans are good but tend to be too high. I windsurf and its useful to have a lower roof so I can put boards on the roof.

Sometimes after a period of invention and diversity - diversity actually decreases.

I can see that this on occasion has happened in the software industry.