Photo by Gina Cholick. Courtesy of NHMLAC After a year of lockdown due to the pandemic, all of the four major museums along Miracle Mile’s Museum Row have — or will soon — open, with safety protocols in place. The first among them is the Petersen Automotive Museum, 6060 Wilshire Blvd., which had its rollout last month. The Los Angeles County Museum of Art (LACMA) is set to open April 1, and the La Brea Tar Pits Museum follows on April 8. At the Petersen Museum, three exhibits that were launched during the pandemic are on view: “Supercars: A Century of Spectacle and Speed,” “Extreme Conditions” and “Redefining Performance,” featuring Porsche’s most innovative road and race vehicles.