Question: The Volkswagen T-Roc is a concept car that debuted at the Geneva Auto Show, in which year, the T-Roc is smaller than the Tiguan, and far more advanced than the Tiguan, a compact crossover vehicle (CUV) manufactured by German automaker Volkswagen? 
Sentence (from "EDAG Biwak"): In the Geneva Auto Show in 2006, it appeared as a concept car.
Relevant evidence: No