There is no doubt that this season was a disappointment for Kyle Busch. It was perhaps his worst season ever as a NASCAR Cup Series driver. After 20 years, Busch failed to win a race during the Cup season, ending his record streak at 19 consecutive years with a victory. Kyle Busch will be the first to admit to his struggles. He is a two-time champion and does not take lightly his failures on the year. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in lineups! With the season behind him, Busch took time to reflect on the season. “Arguably the toughe…