Street Machine Summernats 37 will rock Canberra into the new year with Jet headlining two huge nights of horsepower-infused Aussie rock and party action. Friday night’s kicks off with Sydney rock stars Thirsty Merc. With a stack of hits including In the Summertime And Someday, Someday, there’s more than 20 Good Reasons to head to Summernats…