The arrival of the 4WD, twin turbo Nissan Skyline GT-R towards the end of the Australian Touring Car Championship was enough for Jim Richards to take Nissan's first title in a four driver showdown again Ford Sierra threesome, Dick Johnson, Peter Brock and the surprising Colin Bond who had won the Lakeside and Mallala rounds of the ATCC.
Glenn Seton took his first race wins as a team owner beginning with the Sandown 500, while the Holden Racing Team took a memorable Bathurst win for Win Percy and Allan Grice outlasting the GT-R and the pack of tyre frying Sierras on a day of attrition.
Larry Perkins underlined Holden's return to form by winning Eastern Creek Raceways first major touring car race at the end of the season.
The Ansett Air Freight Challenge was a support event at the 1990 Australian Grand Prix meeting.
Nissan Motorsport Australia had intended to run two of the new 4WD, twin-turbo Nissan Skyline R32 GT-R's at the meeting, but were reduced to just one car after Mark Skaife rolled his GT-R at Brewery Bend (turn 10) during practice.