Win Race Gas Dollars with Challenge Waimak! Reminder to all Woodford Glen drivers to purchase your race gas from Challenge Waimak, get a sticker, put it on your car and your in with a chance to win a $400 race gas credit. Its that easy thanks to the team from Challenge Waimak. Promo is open to Stockcars, Streetstocks, Saloons, Production Saloons & SuperStocks – $2000 to be won! Check out the smiles on a couple of last years winners – Malcolm Ngatai and Paul Leslie.