Motor show committee chairman Chris Beecham said attendance was more than 117,000 over the 10 days of the show, compared with last year's record 128,000.
He attributed the smaller figure to the one-off move from February to March, CityTrain and the Broncos versus Cowboys clash on Sunday.
"We'll be happy to go back to February next year," he said. The Brisbane show swapped dates with the Melbourne Motor Show so it could avoid a clash with the Commonwealth Games.
"Overall, the quality of the stands was good and there were a lot of sales made," Beecham said.
Audi Centre dealer principal Greg Willims said they sold a lot of luxury vehicles including a $748,000 Lamborghini Murcielago Roadster, a Maserati GranSport costing $264,000 and two Bentley Continental Flying Spurs worth $390,000 each.
He said they also had orders for two Bentley Azure convertibles worth $650,000 each and 32 Audi Q7 sports utility vehicles.
A custom chopper built during the duration of the show was passed in at auction for $75,000 on Saturday night as it was below reserve.
The Croc Chopper, built by King Pin Choppers of Geebung, is now for sale by private tender with profits going to the Royal Children's Hospital Foundation.
Leukemia patient Harley Jack Davidson Jones, 7, of the Gold Coast, gave the project his seal of approval when he was a guest of the show last week.
With a name like that, he could hardly be expected to disapprove, although he seemed more interested in the Wiggles car on a nearby stand.
Harley did, however, appreciate the crushing action of the croc's jaws at the front of the bike.
A Royal Children's Hospital Foundation spokeswoman said the money raised from the auction would be used to help find a cure for people like Harley.
Kin Pin Choppers boss Phil Harwood said he was disappointed the bike was not sold, but the way now was open for its true value to be realised.
Prospective buyers should contact motor show organiser Michelle Ramsey, on 3237 8760.
More than $105,000 was raised for the Road Safety Fund of Queensland in the annual Personalised Plates Queensland Collector Plate Auction at the show with the top price of $15,000 bid for Q162.
Successful bidder Peter Campbell of the Gold Coast said he already had Q308 and wanted to acquire more of the historic Q plates, the first series issued in Queensland early last century.
Another collector bought the new football-themed, seven-character plates BRONCOS ($14,000) and COWBOYS ($13,000).
Next year's motor show will be from February 2-11.
Exhibitor stand results: motorcycles and scooters, Morgan & Wacker Harley-Davidson; motor vehicle stand under 500sq m, Saab; stand over 500sq m and John Cant Award, Hyundai; allied industry display, Personalised Plates Queensland; and aftermarket stand, Northfield Car Sound.