http://en.wikipedia.org/wiki/CATIA

Do you feel, by designing,constructing a double Decker models
for cars similar to Double Decker Buses used in some countries, would it be liked by consumers i.e. Car users ?. If the Double Decker car models is liked by consumers, can we also try for Triple Decker Car
Models ?

A 8-10 Person Sitting Capacity Cars can be doubled using a Double Decker similar to a Bus. There will be a Ladder / Stair Case in the center to allow people to climb and sit on the Top
of the car to get a Top View similar from a Double Decker Bus. The Car Top will be closed. In this Model the Car sitting capacity can increase to another 8-10 people.

Note : The length and width is restricted to number of people travelling in cars. Increasing the Height and employing a Double Decker model will increase the sitting capacity.

The Total Height of a Double Decker Car and Triple Decker Car Models should not exceed the Height of a Bus Carrier and not to be taken with the Total Height of a Double Decker Bus. Note that the Bus Decker Model's Height increases with addition of a extra Deck/Floor.

One can use CATIA Software from Dassault Systems for Designing Double Decker Car and Triple Decker Cars.

Cases
=====

Case 1
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Current Model
--------------------

A Five capacity carrier passenger car. Two in the front including the driver and three people
sitting in the rear/back seat. Here n = 5, where n= Total number of Passengers.

Double Decker Car Model
------------------------------------

A Five capacity carrier passenger car. Two in the front including the driver and three people
sitting in the rear/back seat. Here n = 5, where n= Total number of Passengers.
By Adding a Double Deck, the capacity will increase to 10, where five people will sit on the Top Floor.
Now n=10, where n= Total number of Passengers.

Triple Decker Car Model
-----------------------------------

A Five capacity carrier passenger car. Two in the front including the driver and three people
sitting in the rear/back seat. Here n = 5, where n= Total number of Passengers.
By Adding a Double Deck, the capacity will increase to 10, where five people will sit on the Top Floor.
Now n=10, where n= Total number of Passengers.
By Adding another Deck, the capacity will increase to 15, where five people will sit on the Top First Floor.
and another five people will sit on the Top Second Floor. Now n=15, where n= Total number of Passengers.

Case 2
---------

Current Model
--------------------

A Eight capacity carrier passenger car. Two in the front including the driver and six people
sitting in each of the two rear/back seats. Here n = 8, where n= Total number of Passengers.

Double Decker Car Model
------------------------------------

A Eight capacity carrier passenger car. Two in the front including the driver and six people
sitting in each of the two rear/back seats. Here n = 8, where n= Total number of Passengers.
By Adding a Double Deck, the capacity will increase to 16, where eight people will sit on the Top First Floor. Now n=16, where n= Total number of Passengers.

Triple Decker Car Model
-----------------------------------

A Eight capacity carrier passenger car. Two in the front including the driver and three people
sitting in each of the two rear/back seats. Here n = 8, where n= Total number of Passengers.
By Adding a Double Deck, the capacity will increase to 16, where eight people will sit on the Top Floor.
Now n=16, where n= Total number of Passengers.
By Adding another Deck, the capacity will increase to 24, where eight people will sit on the Top First
Floor and another eight people will sit on the Top Second Floor. Now n=24, where n= Total number of Passengers.

Thanks & Regards,
Prashant S Akerkar