IROC VI was the sixth year of IROC competition, which took place in 1978 and 1979. The format changed from IROC V in that three qualifying races were held for participants from NASCAR, USAC Champ Car, and Road Racing (which primarily consisted of Formula One, SCCA, and IMSA). The top four finishers in these qualifying races then earned the chance to race in the two final races at Riverside International Raceway and Atlanta Motor Speedway. It used the Chevrolet Camaro in all races. Mario Andretti won the road racing finale en route to the championship and $75,000.

The final points standings were as follows: ^[1]

Rank	Driver	Winnings	Series
1	Mario Andretti	$75,000	Formula One USAC Champ Car CART
2	Neil Bonnett	$28,500	NASCAR Winston Cup
3	Cale Yarborough	$28,500	NASCAR Winston Cup
4	Bobby Allison	$21,000	NASCAR Winston Cup
5	Alan Jones	$20,000	Formula One
6	Gordon Johncock	$19,000	USAC Champ Car CART
7	Tom Sneva	$18,000	USAC Champ Car CART
8	Emerson Fittipaldi	$17,000	Formula One
9	Peter Gregg	$16,000	IMSA Camel GT
10	Donnie Allison	$15,000	NASCAR Winston Cup
11	Al Unser	$15,000	USAC Champ Car CART
12	A. J. Foyt	$0	USAC Champ Car

1. Bobby Allison
2. Cale Yarborough
3. Donnie Allison
4. Neil Bonnett
5. David Pearson
6. Benny Parsons
7. Dave Marcis
8. Darrell Waltrip

1. A. J. Foyt
2. Al Unser
3. Gordon Johncock
4. Tom Sneva
5. Danny Ongais
6. Johnny Rutherford
7. Rick Mears
8. Bobby Unser

1. Peter Gregg
2. Emerson Fittipaldi
3. Mario Andretti
4. Alan Jones
5. David Hobbs
6. Patrick Depailler
7. John Watson
8. Niki Lauda

1. Mario Andretti
2. Cale Yarborough
3. Bobby Allison
4. Alan Jones
5. Emerson Fittipaldi
6. Gordon Johncock
7. Neil Bonnett
8. Tom Sneva
9. Peter Gregg
10. Donnie Allison
11. Al Unser
12. A. J. Foyt

1. Neil Bonnett
2. Mario Andretti
3. Bobby Allison
4. Cale Yarborough
5. Tom Sneva
6. Gordon Johncock
7. Peter Gregg
8. Alan Jones
9. Emerson Fittipaldi
10. Al Unser
11. Donnie Allison

• IROC VI History - IROC Website