So the Lancia Delta, DeLorean DMC 12, and the IONIQ 5 do share some design DNA. Giorgetto Giugiaro designed the original Hyundai Pony Coupe which was the inspiration for the IONIQ 5 design. Giugiaro went on to design the Lancia Delta as well as the iconic DeLorean DMC 12.
Hyundai has a new page up now paying tribute to the Hyundai Pony Concept, with some quotes from Giugiaro himself.
https://www.hyundai.com/worldwide/en/brand/an-icon-from-the-past