I think one factor in the gradual increase in car size is the problem of visibility. A lot of new large cars are not only large ( taller and wider ), but have

I think one factor in the gradual increase in car size is the problem of visibility. A lot of new large cars are not only large ( taller and wider ), but have a tendency to have privacy type glass. This means if you are in a traditionally sized car behind you can't see much of the road ahead. Driving in a busy city, the lack of visibility of what's happening beyond the car ahead is very disconcerting. Solution? Get a bigger car yourself, with a higher driving position.