 Complete the following phrase:  Chaparral started fielding Indy cars in 1978 with Al Unser driving the No. 2 First National City Travelers Checks Lola T500-Cosworth DFX. Unser then managed to win the 1978 Indianapolis 500. Later in the season Unser added wins at the California 500 at Ontario Motor Speedway and the Schafers 500 at Pocono International Raceway; as of 2013, this remains the only time a driver has won the Fuzzys Premium Vodka Triple Crown. Despite these wins, Unser lost the championship to Tom Sneva who failed to win a race. With the formation of CART, Hall fielded Unser in the No. 2 Pennzoil Lola T500-Cosworth DFX. At the 