![Prototype of the Trabant 603 with a Wankel engine. The 603 was planned as a modernized successor to the 601, but its serial production failed for technical reasons Stock Photo - Alamy Prototype of the Trabant 603 with a Wankel engine. The 603 was planned as a modernized successor to the 601, but its serial production failed for technical reasons Stock Photo - Alamy](https://c8.alamy.com/zooms/9/28187320ead241dc935c38f58c65c47f/rmdk7a.jpg)
Prototype of the Trabant 603 with a Wankel engine. The 603 was planned as a modernized successor to the 601, but its serial production failed for technical reasons Stock Photo - Alamy
![Tod einer Automobil-Legende: Warum Trabi-Vater Winfried Sonntag so viele Prototypen vernichten musste | Freie Presse - Zwickau Tod einer Automobil-Legende: Warum Trabi-Vater Winfried Sonntag so viele Prototypen vernichten musste | Freie Presse - Zwickau](https://www.freiepresse.de/DYNIMG/84/18/8338418_W800C921x614o66x47.jpg)
Tod einer Automobil-Legende: Warum Trabi-Vater Winfried Sonntag so viele Prototypen vernichten musste | Freie Presse - Zwickau
![Prototype of the Trabant 603 with a Wankel engine. The 603 was planned as a modernized successor to the 601, but its serial production failed for technical reasons Stock Photo - Alamy Prototype of the Trabant 603 with a Wankel engine. The 603 was planned as a modernized successor to the 601, but its serial production failed for technical reasons Stock Photo - Alamy](https://c8.alamy.com/zooms/6/28187320ead241dc935c38f58c65c47f/rmdk7a.jpg)