The acrid odor of burning methanol filled the air at the 34th Monterey Historics during a practice session at the event, which this year celebrates the heritage of Indy's Roadster era. Also on deck for the weekend are IMSA and Can-Am monsters of history. The newest car in the entire group of 400 cars is 1981 Porsche 935K4, with a 1914 Mercer taking up the slack. Stick around as we turn on the racing way back machine over the next few days.