The Muscle Milk Aston Martin of Klaus Graf and Lucas Luhr topped the timesheets in today’s test session on the super fast and sweeping turns of Mosport International Raceway.

After a dominant performance in last year’s race where Graf and Romain Dumas topped every session, scored the pole and led every lap on route to victory – Graf and Luhr were fastest today with a 2.2 second margin over the Lola of Steven Kane and Humaid Al Masaood.

Kyle Marcelli and Chapman Ducote headed the LMPC class with the pair of Intersport cars the only pair dropping into the 1 minute, 13 second bracket. Team owner Jon Field and Ricardo Vera were second fastest.

Bill Aurberlen and Dirk Werner were the quick men in GT where the BMWs were again 1-2 in testing.

Official practice for this weekend’s Canadian round of the American Le Mans Series kicks off at 10:30 am on Saturday.