The car is certainly more mysterious given no examples are known to exist. Additionally, the RS 001 story reads like a spy novel from the start to its untimely demise.
Once thought lost to time, the Auto Union Type 52 has finally been produced. At the time, the car was envisioned as a Grand Prix (F1) car for the road. Given that, why not compare it to another similar modern car such as the Aston Martin Valkyrie?