For 10 points, name these objects that in Germany included Sachsenring's notorious Trabant and the Beetle produced by Volkswagen.
Erwin Komenda created the distinctive design of one of these objects, which was produced by a company saved by Ivan Hirst. Norbert Konrad and Heinz Meixner used the same one of these objects to perform the same feat only three months apart, and Horst Breistoffer modified another one called an Isetta to do the same action at Checkpoint Charlie. One of these objects was made out of Duroplast and was generally more expensive to buy used than new. Birgit Kinder's "Test the Best" graffiti shows one of these objects crashing through the Berlin Wall; that type of this object was said to have its value doubled by filling it with gas. For 10 points, name these objects that in Germany included Sachsenring's notorious Trabant and the Beetle produced by Volkswagen.
Erwin Komenda created the distinctive design of one of these objects, which was produced by a company saved by Ivan Hirst.
cars [or automobiles; or autos; accept Volkswagen Beetle until "Isetta"]