After historic snow postponed the Clash at Bowman Gray several days into the week, NASCAR has enjoyed optimal weather for Speedweek at Daytona. However, there is a real threat of thunderstorms on Sunday, and it's all about when -- not if -- the bad weather will arrive.<br>In a proactive move, NASCAR has moved up the start of the 68th running of the Daytona 500 a full hour to 1:30pm EST. The NASCAR ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/nascar-moves-up-start-time-of-daytona-500-due-to-incoming-storm/10797750/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=www'>Keep reading</a>