MIAMI -- After a disappointing showing on the first day of the Race of Champions, Sebastian Vettel bounced back in a big way.
Vettel single-handedly won the Nations Cup for Germany, winning all eight of his races while beating United States NASCAR drivers and brothers Kurt and Kyle Busch in the final.
"We didn't get to race against each other, so we still don't know who the better 'Busch' is," Kurt Busch said, "but we know Vettel can whack two Busches in one day."