NASCAR Hall of Famer Mark Martin isn’t just a racer. He’s also a fan and aficionado of all things rap and hip hop. Don’t believe me? His favorite artist is, and has been for years, Gucci Mane. Amid the insanely entertaining and very personal rap beef between Drake and Kendrick Lamar. The verbal battle has brought up insanely personal stories and accusations that fans have poured over for the last few days, analyzing every word. Mark Martin understands how competitive hip hop can be. He definitely knows how competitive NASCAR can be. There’s been a few times when rap and NASCAR rivalries have g…