Question: when does the new grand prix season start

title: 2018 Formula One World Championship
text: Key Colour Result Gold Winner Silver 2nd place Bronze 3rd place Green Other points position Blue Other classified position Not classified , finished ( NC ) Purple Not classified , retired ( Ret ) Red Did not qualify ( DNQ ) Did not pre-qualify ( DNPQ ) Black Disqualified ( DSQ ) White Did not start ( DNS ) Race cancelled ( C ) Blank Did not practice ( DNP ) Excluded ( EX ) Did not arrive ( DNA ) Withdrawn ( WD )