The weather is amazing for Detroit Grand Prix, presented by Lear Race Fans on Sunday downtown Detroit at Hart Plaza. #Detroit #Detroitgp #racefans #annarbor #Michigan #downtowndetroit #puremichigan #campusmartius #Petoskeymi #northernmichigan #waynecounty #oaklandcounty… t.co/C6S8XW4qBA t.co/G5FyyRIpE3