This 1993 Lincoln Mark VIII has doors that roll down and under the car itself! You really have to see it in action to get the whole effect. It was recently for sale on ebay with an ending bid of $25,300 (reserve not met).
Implications - Convenience is king. This rings true especially with the new influx of boomers out on the market looking to spend their hard-earned retirement money. This 1993 Lincoln Mark VII capitalizes on this newly retired demographic and caters to their needs by providing them with a car that allows them to enter and exit with ease (while looking good). Companies should take note and try to reevaluate their offerings in order to cater to this emerging demographic.