It represents the latest evolution of the design philosophy introduced with the Q50, which had its world premiere at the North American international auto show in Detroit in January.
Like the Q50, the Q30 Concept also incorporates dramatic design cues from the Infiniti concept trilogy - Essence, Etherea and Emerg-e.
"Q30 Concept is slender, sleek and seductive," said Alfonso Albaisa, Infiniti executive design director.
"When you see speedy big cats, like cheetahs, they have a slenderness and a lightweight stride. It's almost like they're floating. That's the muscularity we were aiming for with Q30 Concept."
Infiniti's forthcoming compact premium entry will be the first Infiniti model Sebastian Vettel, Infiniti's director of performance, will influence from its inception.
The three-time Formula One world champion from Infiniti Red Bull Racing is engaging with Infiniti's technical teams to help infuse the brand with race-bred performance.