The Austrian Grand Prix has had a sporadic spot in Formula 1 but has delivered some unforgettable moments, so F1 Oversteer has looked into five of the most iconic races. F1 visited Styria for the debut Austrian GP as part of the world championship in 1964 after a test event a year prior. Since then, the round has fallen off and on the Formula 1 calendar as the Osterreichring required changes and passed through the hands of A1 and, now, Red Bull. Austrian telecom brand A1 paid for much of the refurbishment to the Osterreichring after F1 canned the circuit owing to safety concerns in the 1990s. …