Examples of websites using
Regular
(Regular is a sans-serif font designed by A2 Type. The family is available in 7 Weights + Italics in each style, each with various weights and matching italics)
with
Aperçu
(Aperçu is a sans-serif font designed by Colophon Foundry and released by Commercial Type. The family is available in multiple weights and styles, including regular, condensed, and extended widths, with matching italics)