Top 10 Automotive Concepts of 2023 Published on December 24, 2023 in Top 10 by Louis-Philippe Dubé Photo: Gabriel Gélinas 2. Mazda Iconic SP Concept The Tokyo Motor Show was a colourful affair this year, especially when it came to small sports car unveilings. And Mazda didn't disappoint the automotive press with the unveiling of the Iconic SP concept. It represents the future of Mazda's small sports cars, and incorporates both an electric motor and a rotary engine to develop 365 horsepower.