Concept cars generally are meant to be show cars where designers are allowed to include such things as rounded corners, flowing lines, oversize windows, and new technological advances
still too costly to include in cars sold to the public. Sometimes items are included even though they might not even work. The overall appearance of the car
must be compelling enough for the media and they public to accept that this car has potential to become real in the future. The more the manufacturer can say, for example, that this new
windshield design or this new engine will be in our car next year or two years down the road, the more the public will accept it and the more likely sales will occur.
General Motors have brought out many concept cars with the Pontiac label over the years. Pontiac, however, is taking it on the chin as it is set to be discontinued as a branded car.
Nevertheless, the vehicle has thousands of fans around the world and it is likely to remain a favorite for those who buy used cars and bring them back to life again. The GTO and Bonneville, for example, are still likely to
be seen in many future car shows.
The Porsche Traveller is not an official Porsche concept car and some have called it "very ugly" in appearance. But from drawings of cars like the Traveller, a designer
can use his imagination to increase the window height, lengthen the hood, or change the main lines just a bit and the Traveller could reach the acceptable stage for an
actual prototype to be built. The good car designer does not automatically rule anything out without due inspection and, in his imagination, he sets his own inspection limits.