The1981 Hang Ten 400 was an endurance race forGroup C Touring Cars.^[1] The event, which was Round 3 of the1981 Australian Endurance Championship, was staged on 13 September over 119 laps of the 3.1 kmSandown International Motor Racing Circuit inVictoria,Australia.^[1] It was the 16th race in the history of what is now known as theSandown 500.

Peter Brock drove aMarlboro Holden Dealer TeamHolden VC Commodore to a record sixth consecutive Sandown endurance win and his seventh victory in the race.1981 Australian Touring Car ChampionDick Johnson finished second after starting from pole position in thePlamer Tube MillsFord XD Falcon. Third was theRoadways Gown HindhaughHolden VC Commodore of Steven Harrington and Garth Wigston.

Colin Bond and Steve Masterton were the winners of Class B in aFord Capri V6, whileSydney's Peter Williamson won Class C with aToyota Celica. Class D was won by Craig Bradtke and Rod Stevens driving aMitsubishi Lancer.

The field was divided into four engine capacity classes:^[1]

• Class A : 3001 to 6000 cc^[1]
• Class B : 2001 to 3000 cc^[1]
• Class C : 1601 to 2000 cc^[1]
• Class D : Up to 1600 cc^[1]

• Entries in Official Programme - 55^[1]
• Pole Position -Dick Johnson (Ford XD Falcon) - 1m 11.9s^[5]
• Starters - 46^[2]
• Finishers - 26^[2]
• Non-finishers - 20^[2]
• Race time of winning car - 2h 30m 39.6s^[2]
• Fastest Lap - Unknown

• The Official Racing History of Holden, 1988, page 308
• The Age, Monday, 14 September 1981, page 30

• Touring Cars 1981, www.autopics.com.au

• Motorsport at Sandown
• 1981 in Australian motorsport
• Pre-Bathurst 500

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