Marty Martinucci was a part-time stock car driver and a full-time limo driver who found finish lines and destinations a lot easier to find than a solution to love. You might say it all hinged on technicalities, like when a close race needed the exactitude of a photo finish to determine a winner. You see, Martinucci couldn't decide if his step-sister (or his sister as others referred to her) was eligible for his love. There was the rub. What was she,...