Top 5 racing families in NASCAR

It's been all about the Busch brothers in NASCAR lately.

Kyle won last weekend's Toyota/Save Mart 350 at Sonoma Raceway. He also won the Xfinity Series race, Great Clips 250 Benefiting Paralyzed Veterans Of America, the week before. Kurt was victorious that same week, but in the Sprint Cup Series at the Quicken Loans 400 at Michigan International Speedway.

With the Busch brothers' recent dominance, here's a look at the five best racing families in NASCAR.

5. The Wallace Family

Rusty Wallace broke into NASCAR in 1980 and won Rookie of the Year in 1984. He won the 1989 Winston Cup - now known as Sprint Cup - series in 1989, beating out Dale Earnhardt by 12 points. In his 26-year career, he ran 706 races, had 55 wins, 202 top-fives and 349 top-10s.

Rusty's brothers, Kenny and Mike, joined the Winston Cup Series in 1990. Kenny won Rookie of the Year in the Busch - now known as Xfinity - Series in 1991 and the Most Popular Driver award in 1991, 1994, and 2006. Mike found success in the Busch series, as well as the Camping World Truck.

4. The Allison Family

Bobby Allison won one championship (1983) and has the third-most wins in NASCAR history (85). He had 336 top-five and 446 top-10 finishes in his 718 career starts. Bobby won the Daytona 500 three times in 1978, 1982 and 1988.

Bobby's brother Donnie only recorded 10 wins with his best finish in points, 16th, coming in 1967. Bobby's son Davey, was an up-and-coming star in NASCAR, with his best finishes in points, third, coming in 1991 and 1992. Davey tragically died in a helicopter crash in 1993. Bobby's other son, Clifford, was killed practicing for the Busch series.

3. The Waltrip Family

Darrell Waltrip started racing in the 1970s and competed against the likes of Richard Petty, David Pearson, and Bobby Allison. Darrell won the Winston Cup championship three times (1981, 1982, 1985). In his 29-year career, he won 84 of 809 races, had 276 top-fives, and 390 top-10s. Darrell is still involved in NASCAR, serving as an announcer and analyst.

Darrell's brother, Michael started in NASCAR in 1985. He didn't have as much success as his brother. Twelfth was his best finish in the standings in both 1994 and 1995. Michael currently owns a Sprint Cup team - Michael Waltrip Racing - that consists of two cars driven by Brian Vickers, David Ragan, and Clint Bowyer. Michael still pilots his own car in a few races and also contributes to announcing for some NASCAR races.

2. The Petty Family

Lee Petty started racing in NASCAR in 1949 and won three Grand National championships (1954, 1958, 1959). At the end of his 427-race career, in 1964, he won 54 races and finished in the top-two 332 times.

Lee's son Richard, otherwise known as The King, is one of the best drivers to ever race in NASCAR. In his 35-year career, he collected 200 wins, 555 top-fives and 712 top-10s, and won seven Grand National championships.

Richard then passed the torch to his own son, Kyle, who ran in NASCAR from 1979 to 2008, winning only eight races. The fourth generation of Pettys, Kyle's son Adam, died in a tragic accident when he was practicing for the Nationwide Series in 2000 at 20 years old.

1. The Earnhardt Family

Dale Earnhardt Sr. won his first championship a year after he started his first full season in 1980. He won six more championships in 1986, 1987, 1990, 1991, 1993, and 1994. In 676 races over 27 years, he had 76 wins, 281 top-fives, and 428 top-10s. After The Intimidator's death in 2001 at Daytona, the HANS device became mandatory for all race cars in hopes of preventing head injuries of that magnitude from happening again.

Dale Sr.'s son, Dale Jr., is the top fan favorite driver in the Sprint Cup series. Over his 17-year career, he has 24 wins, 135 top-fives, and 234 top-10s so far. He has won two Busch series championships in 1998 and 1999. He is a two-time Daytona 500 winner and has won the Sprint Cup Series Most Popular Driver 12 times (2003-2014).