Will never happen. As long as there's a free market, capitalism exists and people need to have a car to get from A to B, there will always be people looking for vehicles to fit their particular situation - Economical family cars, SUVs, "beaters" for getting to/from work, simple no-frills models for the budget conscious, luxury cars, performance vehicles, sports cars, and yes, people who have lots of $$$ (or fake it with a lease they can barely afford) and want to display that wealth by driving an expensive car.